[Keymap] Add missing tap dance action and fix RGB hues in personal keymaps (#6312)

[Keymap] Add missing tap dance action and fix RGB hues in personal keymaps (#6312)

* Add missing TD_RSF_RCT tap dance

* Use standard QMK HSV and RGB structs, fix Godspeed colors

* Move PROGMEM after the type in RGB intervals

* Add MODERN_DOLCH_RED color, use it on KBD6X

* Use 255 instead of RGBLIGHT_LIMIT_VAL in color definitions

* Remove IS_COMMAND override on Whitefox