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

1x4p1 (#11186)

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

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

Ensure single newline at EOF for core files (#11310)

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

Simplify the visual flow of the getting started page (#11316)

* Add tabs to getting started page

* Review comments

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

* Align with current theme

* Update docs/newbs_getting_started.md

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

* Apply suggestions from code review

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

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

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

Change include guards in tmk_core/ and drivers/ to pragma once (#11240)

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

Change include guards in quantum/ to pragma once (#11239)

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

[Keyboard] Fix default keymaps for tunks/ergo33 (#11280)

* [Keyboard] Fix default keymap for tunks/ergo33

* Add prpro keymap too

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

[Keymap] update rules.mk and config.h of `helix/rev2:five_rows` (#11302)

* update keyboards/helix/rev2/keymaps/five_rows/rules.mk: oled selection, led animation selection

* add OLED_UPDATE_INTERVAL support into keyboards/helix/rev2/keymaps/five_rows/oled_display.c

Support for OLED_UPDATE_INTERVAL, even for older types of OLED tasks.

* Add 'HELIX=debug/no-debug' option into 'helix/rev2/keymaps/five_rows/rules.mk'

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

First commit of Kawii9 (#11201)

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

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

Adding new keyboard: Tenkey++ (tenkey_plusplus) (#11197)

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

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

[Keyboard] Fix Dactyl Manuform with Trackball info.json (#11298)