Fixup EFL and F4's sector selection. (#19221)

Fix `RGB_MATRIX_LED_COUNT` for aurora/corne (#19222)

[Keyboard] Fix config error for Charybdis (#19219)

[Keyboard] Add keyboard Caticorn (#19138)

Add meow48 ver.1.0 keyboard (#19217)

just make the PRs stop

[Keyboard] Daskeyboard4 (#18675)

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

[Keyboard] Add Litl keyboard (#19000)

Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: Drashna Jaelre <drashna@live.com>

[Keymap] Fixed ifohancroft Swap Hands Config (#19176)

Keeb.io Sinc: Enable Split LED state (#19187)

[Keymap] Update Miryoku (#19190)

Add some community layouts to 40percentclub boards (#19209)

Fix bad bootmagic config (#19206)

Enable bootmagic (#19191)

[Keymap] Drashna updates for 0.19 (#19175)

* Fix up bastardkb boards since blackpill support is officially added.
  * Check for blackpill version, not elite c.
  * Add checks in chibiOS config since multiple ARM controllers supported.
  * Rework rules.mk for keymaps to better handle arm vs avr support
* Start moving away from `matrix_*_*` functions.
  * `housekeeping_task_*` instead of `matrix_scan_*`
  * `keyboard_(pre|post)_init_*` instead of `matrix_init_*` 
* Add ℂℴmⅈℂ unicode input method.
* Clean up unicode code to be more compact and flexible.
* Remove/move Pro Micro LED commands to userspace and better filter them
* Fixup OLED code
  * Use newer quantum keycode functions/preprocessors rather than manual bit manipulation
  * Make unicode mode render much more compact/simple.
* Make qmk secrets more self contained
* Remove custom implementation of split watchdog

new keyboard rb1 (#18164)

* rb1

* Update keymap.c

* Update keyboards/ryanbaekr/rb1/info.json

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

* Delete rb1.c

* Delete rb1.h

* Update keyboards/ryanbaekr/rb1/config.h

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

* Update keyboards/ryanbaekr/rb1/config.h

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

* Update keyboards/ryanbaekr/rb1/config.h

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

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

Add piantor (#18920)

* Add piantor

* Update keyboards/beekeeb/piantor/readme.md

Co-authored-by: Drashna Jaelre <drashna@live.com>

Co-authored-by: Drashna Jaelre <drashna@live.com>

Merge remote-tracking branch 'upstream/develop'

Fix API errors in handwired/tractyl_manuform/5x6_right/arduinomicro (#19166)

Change `RGB_MATRIX_STARTUP_*` defines to `RGB_MATRIX_DEFAULT_*` (#19079)

Joystick feature improvements (#19052)