[Clock desklet] Switch to Settings API
[Keyboard applet] Switch to Settings API
[Scale applet] Switch to Settings API
[Expo applet] Switch to Settings API
[Applets] Misc. fixes
[Applets] Removed unused gsettings keys
[Keyboard Applet] Fix typo
Merge pull request #2155 from dalcde/settings-api

Port xlets to settings API