The previous default configuration and keymap was made for a Phantom
modified with RGB underlight.
This commit makes the default more in line with the "official"
configurations provided by the PCB.
The previous default have been moved to a separate keymap named
`rgbmod`. It has also been updated to better match the template keymap.
Moves RGB controls out of the macro function and assigns them their own
keycodes:
RGB_TOG (toggle on/off)
RGB_MOD (mode step)
RGB_HUI (increase hue)
RGB_HUD (decrease hue)
RGB_SAI (increase saturation)
RGB_SAD (decrease saturation)
RGB_VAI (increase brightness)
RGB_VAD (decrease brightness)
