A delay of 10ms seems sufficient. Otherwise, media keys tapped from the
encoder of my BDN9 macropad only seem to get picked up by the OS
(Windows 10) some of the time.
* Switch Quefrency from flaky I2C back to serial
* Lower mouse wheel speed on Quefrency slightly
* Migrate common settings to userspace
* Enable Bootmagic Lite for consistent reset to bootloader.
* Turn off some undesired features across all keyboards.
* Remove EEPROM reset keybinding from all keyboards since Bootmagic Lite
also does an EEPROM reset.
* Set backlight and underglow increments consistently across all
keyboards since lots of them like to override the deafults.
* Set mouse keys consistently across all keyboards.
* Update function layer keymap images