Update all modules to drop the module API to load/save settings

[enricogior]

Provide a description of the new feature / enhancement

• [ ] Update all modules to drop the old Settings requirement and use a file watcher to reload
  • [ ] Color Picker
  • [ ] FancyZones (planned for 0.41)
  • [ ] File Explorer add-ons
  • [ ] Image Resizer
  • [x] Keyboard Manager
  • [ ] Power Rename
  • [ ] PowerToys Run
  • [ ] Shortcut Guide (planned for 0.39)
• [ ] After all modules dropped the old Settings requirement, update the module interface to drop it as well
• [ ] Remove old Settings references from the documentation

[crutkas]

Is this work we can push out a few releases so we can focus on some bugs?

[enricogior]

@crutkas in 0.39 we do it only for Shortcut Guide, in 0.41 we will do it for FancyZones.