Lawnchair 2 2.0-1947-ci-alpha

Changelog for build alpha-1947:
- force build to start (by Till Kottmann)
- Add links section to README (by Till Kottmann)
- Try to fix dissapearing actions/suggestions (by Till Kottmann)
- Fix actions initally not loading when using sesame (by Till Kottmann)
- Display Lawnchair at the top of the widget list (by Till Kottmann)
- Fix crash in widgets drawer (by Till Kottmann)
- Suggest folder icons when editing folders (by Till Kottmann)
- Properly display current folder icon on icon edit activity (by Till Kottmann)
- Set proper accent color to the icon search icon (by Till Kottmann)
- Add debug info to icon picker (by Till Kottmann)
- Clear folder custom icon on delete (by Till Kottmann)
- Experiment with folder backgrounds (by Till Kottmann)
- Don't draw shadow behind custom folder icons (by Till Kottmann)
- Prepare for source drop oof (by Till Kottmann)
- Update Gradle wrapper (by Harsh Shandilya)
- Update Android Gradle Plugin (by Till Kottmann)
- Improve app selection screen (by paphonb)
- Separate activity for settings fragments (by paphonb)
- Wait for launcher init before syncing icon pack with sesame (by paphonb)
- Fix crash when changing icon packs (by paphonb)
- Fix crash when no icon pack is selected (by paphonb)
- Drawer tabs bugfixes (by paphonb)
- Fix missing padding in app drawer (by paphonb)
- Add hidden app editor in tab editor (by paphonb)
- Optimize hidden apps filter (by paphonb)
- Don’t wrap null in adaptive icon (by paphonb)
- Fix “All Apps” label not showing without app actions (by paphonb)