[vte] (130 commits) Non-fast-forward update to branch wip/rishi/css-theme-background-color

[Debarshi Ray <debarshir src gnome org>]

The branch 'wip/rishi/css-theme-background-color' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  e881b64... widget: Improve legibility by tweaking the system theme's b

Commits added to the branch:

  a201ede... lib: Fix exception thrown from std::clamp (*)
  663983a... glib: glue: Set source names for debug (*)
  276d06c... docs: Add index for API new in 0.60 (*)
  262c450... all: Fix the build without ICU (*)
  9a21d41... widget: Set error from vte_terminal_set_encoding when built (*)
  408a041... Update Ukrainian translation (*)
  19c9401... lib: Fix switching between legacy encodings (*)
  344c2e7... icu: glue: Set error callback on the from-unicode conversio (*)
  328ac0d... lib: Rename some helper classes (*)
  e3bc90a... lib: Make FD helper class less magic (*)
  c9dc086... pty: Split getting PTY peer FD out of child setup (*)
  12097b6... pty: Add link to some docs (*)
  877d5b2... pty: Don't fail init when passed a cancellable (*)
  626bebf... spawn: Remove unused functionality (*)
  f38de6a... spawn: Whitespace cleanup (*)
  280cf81... spawn: Remove unused functionality (*)
  27766e7... spawn: Remove unused code (*)
  84d9b51... spawn: Remove unused error cases (*)
  f0785e0... spawn: Always set FDs CLOEXEC (*)
  f6384ba... spawn: Remove unused parameter and variables (*)
  7caf603... spawn: Remove unnecessary code (*)
  02e4d76... spawn: Use GIOErrorEnum errors to translate errno (*)
  ca76aa7... pty: spawn: Mask vte additions to GSpawnFlags (*)
  3911b3e... docs: Add index for API new in 0.62 (*)
  80a5838... spawn: Rework spawning (*)
  fc75bd9... pty: Call grantpt/unlockpt when opening the PTY (*)
  af64966... spawn: Allow passing file descriptors to the child process (*)
  69ed779... lib: Move fdwalk fallback implementation to its own file (*)
  d7a9bee... lib: Move utility function to the file of its only caller (*)
  387b0a4... lib: Remove duplicated code (*)
  5454a60... lib: Move impl for missing libc function to missing.cc (*)
  cf7a90f... lib: Make argv precondition check tighter (*)
  ffedb03... app: Use utility function (*)
  8aefb5a... lib: Remove unused function (*)
  b8db038... Update Ukrainian translation (*)
  97839e0... spawn: Remove leftover assertions (*)
  464313b... Update Turkish translation (*)
  02e62e2... Updated Spanish translation (*)
  aada550... spawn: Remove unused member variables (*)
  4fd7bd9... icu: Add early return for no-change to set_encoding (*)
  8ba1ed5... widget: Add introspectable variant of vte_terminal_event_ch (*)
  2950ead... widget: Fix some goi annotations (*)
  d4d101d... widget: Only set out param on success (*)
  eae447e... widget: Fix assertion failure in vte_terminal_event_check_r (*)
  6ed2ed2... widget: Also set n_regexes out param on early return (*)
  0bc2d7a... widget: Also set n_matches out param when returning nullptr (*)
  6209239... widget: Set out param only once (*)
  9697d30... spawn: Add envv precondition check (*)
  52aa14a... spawn: Tighten envv precondition check (*)
  eb8e2ed... spawn: Remove debug leftovers (*)
  f35a9e2... spawn: Don't try to call null callback (*)
  db0b3d3... glib: glue: Use correct cast (*)
  bb87396... spawn: Use g_get_environ (*)
  423c2ff... spawn: Don't change PWD when no cwd is given (*)
  b1591c6... spawn: Use nullptr not NULL (*)
  0b17080... spawn: Fix double-calling of the child setup data destructo (*)
  216030e... spawn: Remove inaccurate comment (*)
  84224f5... widget: Notify correct property when setting the scroll-on- (*)
  f69eadf... parser: Add DECFNK sequence (*)
  d63523a... lib: Meta really is Alt (*)
  19ea46d... widget: Add wrapper class for key events (*)
  6b773dd... widget: Focus events have no modifier state (*)
  940ce2c... widget: Remove unused function (*)
  477c45b... widget: Add wrapper class for mouse events (*)
  b404b62... widget: No need to pass focus events to Terminal (*)
  56132ed... widget: Fix debug output to use the event wrapper (*)
  5832792... widget: Move keymap translation to Widget (*)
  b898f1d... widget: Continue treating Meta as Alt (*)
  8425875... widget: Move signal emission to the widget (*)
  9f139a0... widget: Move style update handler to Widget (*)
  4870238... widget: Move grab focus method to Widget (*)
  e77a894... widget: Move retrieving gtk settings to Widget (*)
  5ccac1e... widget: Remove extraneous unmap (*)
  8794381... widget: Make mouse scroll handler return bool (*)
  0c95c0c... spawn: Use unique_ptr for child setup data (*)
  d279259... Add Kurdish Sorani translation (*)
  9e6647a... systemd: Place vte into app.slice rather than apps.slice (*)
  81dca07... spawn: Check for explicit systemd requirement (*)
  062d504... spawn: Ignore EBADF in the fdwalk callback (*)
  fc0fb8a... libc: glue: Make FD's operator bool() explicit (*)
  b975ca7... pty: Fix opening a PTY on non-linux (*)
  78031f3... terminal: Adjust variable type (*)
  6a9580b... widget: Fix underlining the space character in a matched re (*)
  c7d1782... Update Persian translation (*)
  b5304de... Update Romanian translation (*)
  0e8d1a6... glib: glue: Mark some methods as noexcept (*)
  1979546... libc: glue: Make FD self-assignment safe (*)
  e07d807... libc: glue: Make FD operators noexcept (*)
  18912ef... libc: glue: Implement swap for FD (*)
  7d97382... build: Drop -fno-exceptions -fno-rtti (*)
  dc6c348... lib: Ensure no exceptions escape from the C API (*)
  af38494... pty: Fill in winsize.ws_xpixel and .ws_ypixel for TIOCGWINS (*)
  44547bf... lib: Fix the build with debug disabled (*)
  87506bf... lib: Improve exception error message without debug enabled (*)
  ca4a9c9... Update Basque translation (*)
  7fa413a... Updated Slovenian translation (*)
  ba30655... all: Remove cruft (*)
  c1a8683... draw: C++ify (*)
  d9386af... draw: C++ify (*)
  1c5949c... draw: Use DrawingContext directly (*)
  012131e... draw: Remove unnecessary out param checks (*)
  405d3f7... draw: Move struct _vte_draw_text_request into DrawingContex (*)
  9c9d9a4... draw: Move struct unistr_info into FontInfo class (*)
  bb6adce... draw: Pass ownership of references through RefPtr (*)
  42ea29e... draw: Move FontInfo to its own file (*)
  507ac28... draw: Move custom drawing code into its own class (*)
  af80586... draw: Move public define to the only file where it is used (*)
  4c58cac... draw: Move public define to the only file where it is used (*)
  39ea41b... draw: Move remaining class into new file (*)
  b0ef503... draw: Use attr in public functions instead of font style (*)
  0604617... lib: Improve smart pointers (*)
  b3d5c1f... emulation: Fix EL 0 after cursor movement (*)
  070ddda... Update Japanese translation (*)
  2fcd6a9... Update Japanese translation (*)
  263f7a1... Update Indonesian translation (*)
  38f7402... Update Chinese (China) translation (*)
  9810f06... Updated Slovenian translation (*)
  b0e7b2d... Update Catalan translation (*)
  0add69c... Update Friulian translation (*)
  a53fd31... Updated Lithuanian translation (*)
  45de544... build: Use -Bsymbolic when available (*)
  ed78b9e... spawn: Async-signal-safety fixes (*)
  e036d38... spawn: Error out when it is impossible to close all file de (*)
  7903107... all: Replace %m with %s and g_strerror() (*)
  fe95bc7... app: Add option to disable window decorations (*)
  d552d64... app: Add option to load extra CSS from a file (*)
  a4e9f0a... draw: Fix a thinko (*)
  3707633... pty: Fix typo (*)
  acc1542... Update Galician translation (*)
  e3f47d1... widget: Improve legibility by using the appropriate backgro

(*) This commit already existed in another branch; no separate mail sent