Joystick feature improvements (#19052)

Change `LED_MATRIX_STARTUP_*` defines to `LED_MATRIX_DEFAULT_*` (#19080)

Additional DD backlight config (#19124)

* Additional dd backlight config

* Update docs

Stub next develop dates

Fix references to `mouse_report_t` (which doesnt exist) (#19107)

Merge remote-tracking branch 'origin/master' into develop

[Docs] Note default value for TAP_CODE_DELAY (#19078)

Merge remote-tracking branch 'origin/master' into develop

Fix typo (#19035)

Swap Hands on/off - it's `SH_ON/OFF` not `SW_ON/OFF`

Add Bonsai C4 as a platform board file (#18901)

* Set up Bonsai C4 as a platform board file

* corrections and improvements based on testing and feedback

* Added VBUS sensing as default capability for improved split support using Bonsai C4

* Update clock divisor for SPI flash

Co-authored-by: Nick Brassel <nick@tzarc.org>

Co-authored-by: Nick Brassel <nick@tzarc.org>

Digitizer feature improvements (#19034)

[Core] Allow custom timings for WS2812 PIO driver (#18006)

Normalise output selection (Bluetooth) keycodes (#19004)

Add raw output option for QGF/QFF files. (#18998)

Format DD mappings and schemas (#18924)

Align haptic feedback keycode names (#18964)

Normalise MIDI keycodes (#18972)

* `MI_ON`, `MI_OFF`, `MI_TOG` -> `MI_TOGG`

* `MI_CH*`, `MI_CHU` -> `MI_CHNU`, `MI_CHD` -> `MI_CHND`

* `MI_VEL_*` -> `MI_VL*`, `MI_VELU`, `MI_VELD`

* `MI_TRNS_*` -> `MI_TR*`, `MI_TRNSU` -> `MI_TRSU`, `MI_TRNSD` -> `MI_TRSD`

* `MI_OCT_*` -> `MI_OC*`, `MI_OCTU`, `MI_OCTD`

* Misc controls

* Note keycodes

* Add legacy keycodes

* Regenerate keycodes

* Typo

Reworked backlight keycodes. (#18961)

Co-authored-by: Ryan <fauxpark@gmail.com>

Align audio keycode names (#18962)

* Align audio keycode names

* Update docs

* Update quantum

Align dynamic tapping term keycode names (#18963)

* Align dynamic tapping term keycode names

* regen header