Allow setting braille display specific settings in the GUI (PR #8214)
Introduces an abstract driver class and allow the use of braille specific settings in the GUI
- Add HID input setting to ALVA and eurobraille drivers
- Add dot firmness setting to the handy tech driver
- Renamed availableInSynthSettingsRing to availableInSettingsRing. The old, deprecated classes from the synthDriverHandler still use availableInSynthSettingsRing for backwards compatibility
Closes #7452