Currently, apt tries to initialize various frontends, but eventually
realizes that none of them work, as it's run on CI. This commit stops it
from trying in vain.
* chore(appearance): add interface i18n phrases
* wip: appearance page skeleton
* wip: more work on the skeletop
* wip: appearance
* wip: add icons and more widgets to appearance page
* wip: set the theme on entering and leaving the appearance panel
* cleanup & layout improvements
* wip(appearance): accent buttons
* fixes
fix default schemas, install methods, and appearance page
* use git deps
* clippy and cleanup
* update libcosmic & fix illustration names
* feat: cosmic-comp theme variables
* use git deps
* fix: add dep to control
* fix: install libwayland-dev
* udpate libcosmic
* wip: reset to default button
* refactor: color button improvements
* feat: import / export themes
* refactor: defaults for most color pickers and toggle for window hint
* refactor: use a context drawer for the container background color
* cleanup(appearance): box ThemeBuilder in Message
* cleanup(appearance): clippy
* fix(appearance): window hint toggle handling
* chore: more entries for the default schema
* fix: typo
