[gnome-software] (20 commits) ...Merge branch '1670-startup-crash' into 'main'

[Philip Withnall <pwithnall src gnome org>]

Summary of changes:

  f3d9f6a... gs-application: Move a callback method to a more logical po
  3c822ed... gs-application: Inline initialize_ui() helper function
  58ab9cf... gs-application: Remove redundant call to initialize_plugins
  9cfe919... gs-application: Inline setup_search_provider()
  4b61c23... gs-application: Remove redundant call to initialize_plugins
  f33bfa8... gs-application: Make search provider setup unconditional
  60978b3... gs-application: Inline initialize_plugins()
  70edec0... gs-application: Remove redundant get_plugin_loader() method
  319b315... gs-application: Move plugin setup to the end of the activat
  3402504... gs-plugin-loader: Refactor job_process_async() task creatio
  16c6a89... gs-plugin-loader: Make job_process_async() wait until setup
  da8332b... gs-plugin-loader: Fix a typo in a code comment
  12fb74d... gs-plugin-loader: Make refine of load_install_queue() async
  55043a3... fedora-pkgdb-collections: Fix incorrect return of FALSE ins
  5a25c68... fedora-pkgdb-collections: Fix handling of NULL root node
  d9ab60c... gs-download-utils: Ensure the ETag remains set if a file is
  bda25c5... fedora-pkgdb-collections: Avoid refreshing the collections 
  14e7093... gs-odrs-provider: Delete cache file if it’s invalid
  5bd6404... fedora-pkgdb-collections: Delete cache file if it’s invalid
  2b0fc66... Merge branch '1670-startup-crash' into 'main'