[gnome-sound-recorder] (12 commits) ...add few keyboard shortcuts & a shortcuts window

[Bilal Elmoussaoui <bilelmoussaoui src gnome org>]

Summary of changes:

  552cfaf... row: make the export dialog modal (*)
  bbcfa90... recorder: switch to using actions (*)
  76f6b6e... split recorder widget out of window (*)
  21600f9... stop using margin_right/left (*)
  2b2142d... application: simplify actions (*)
  503a08d... properly handle data & cache dir creations (*)
  592e437... dialogs: use close/show instead of destroy/run (*)
  1d4c191... fix eslint warnings (*)
  3ff93e9... ui: remove unnecessary id's & placeholders (*)
  d65d38a... handle closing the window more carefully (*)
  5839d79... row: port to actions (*)
  1e4c90a... add few keyboard shortcuts & a shortcuts window (*)

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