[Core] Change OLED task function to be boolean (#14864)

* [Core] Add kb level callbacks to OLED driver

* Update keyboards and keymaps

* Update docs

* Update userspace configs

* Add fix for my keymap ...

* update lefty

define to AUTO_SHIFT_DISABLED_AT_STARTUP (#14201)

Co-authored-by: agodinhost <agodinhost@globo.com>

Add support for ISSI drivers on both sides of a split keyboard (#13842)

* Gets RGB working on a split keyboard with IS31FL3733. Currently needs small tweak to re-enable WS2812

* Added helper function

* Trying to integrate the function

* Moved functionality into a macro

* Swapped conditional for a macro everywhere

* Tidying up

* More code cleanup

* Documentation updates

* Fixed formatting via linter

* Switching to a function from a macro

* Fixed compile error

* Fixing WS2812 behavior. UNTESTED.

* Updated documentation about the driver addresses.

* Fixed code for WS2812

* Trying to add in LED_MATRIX support

* Updated effects for LED matrix

* Updated third-party effect defines.

* Ran format-c on modified files

* Apply suggestions from code review

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

* Move to static inline. Avoids issues with gcc v8+

* Move helper function for LED_matrix to static inline to avoid issues with gcc v8+

Co-authored-by: Vlad Kvitnevskiy <vladkvit@outlook.com>
Co-authored-by: Ryan <fauxpark@gmail.com>

core: make the full 4096 bytes of EEPROM work on Teensy 3.6 (#12947)

This commit updates QMK’s copy of the the teensy3 Arduino core code with the
necessary changes to make the Teensy 3.6 work.

Aside from different values for the partitioning, HSRUN mode must be left
temporarily while using the EEPROM.

fixes https://github.com/kinx-project/kint/issues/8

related to https://github.com/kinx-project/kint/issues/10

Manually format develop (#15003)

Fix up issues shown by clang-format of vusb (#15004)

Add Fractal RGB matrix effects (#12670)

* Squashed fractal effect commit for easier rebase

* Update documentation

* Squashed fractal effect commit for easier rebase

* Update documentation

* Update doc spacing

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

* Update feature_rgb_matrix.md

Co-authored-by: filterpaper <filterpaper@localhost>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Nick Brassel <nick@tzarc.org>

Fix issues with Oneshot disabling (#14934)

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

[Keyboard] Fix keymaps, RGB matrix, add support for WS2812 (#14974)

Remove complex `fn_actions` macros (#14662)

* Remove complex `fn_actions` macros

* Remove additional `KC_FN*` instances

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

[CLI] Fix broken layout rendering in `qmk info` by '\n' (#14970)

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

[Keyboard] Add new keyboard "QooLee" (#14977)

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

Add new default community layout for no f-row TKLs (#14812)

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

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

[Keymap] Disable in-switch RGB when computer goes to bed (#14993)

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

[Keymap] Improved settings for Cradio default keymap (#14971)

Co-authored-by: filterpaper <filterpaper@localhost>