Miscellaneous UI / widgets refactoring and cleanup
- Merge of "Flatpaks" and "System" tabs (#10)
- Show ">" icon for flatpak rows to indicate that it opens a subpage
- Upgrade to latest gtk-rs release
- Port to new adw dialogs
And a bit renaming
- Consistently use "flatpak" in codebase, and "app" in user interface
- PageApps -> OverviewPage
- PageItems -> FlatpakItemsPage
- AppList -> FlatpakAppList
- AppRow -> FlatpakAppRow
SystemItems / SystemRow are untouched, I think I'll make those generic for different collections and not just the system one - but out of scope for this MR.
Edited by Felix Häcker