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

[Bug] Rename has_mouse_report_changed parameters (#16417)

Fixes compilation issues when bluetooth is enabled, due to issues 
with cpp used by bluetooth code. 

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

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

Fix in-page links in reference_info_json.md (#16487)

Add flash target for UF2 bootloaders (#16525)

Move Doxygen docs to subdirectory (#16561)

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

Some docs improvements (#15845)

* docs: clarify in "Keymap Overview" what LAYOUT is and isn't

It is not strictly necessary to use LAYOUT macros in keyboard.c, but it
is a convenient abstraction of hardware internals, allowing focus on the
physical keyboard layout.

From the C source point of view LAYOUT is macro with a parameter list,
which expands to a array of rows that each is an array with a keyboard
scancode for each column. A macro parameter list is not an array, and
even less a single array.

Perhaps no big deal, but also no reason to give incorrect hints.

* docs: update "Understanding QMK's Code" to current code structure introduced in 96e2b13d1de

This part of the documentation was no longer correct. I tried updating
it, mainly copy editing and using github links to latest release.

This is not trying to fix all problems, but just trying to fix some
problems while reusing much of the old phrases and structure.

* Update docs to use "qmk format-python"

Change data driven "str" type to represent a quoted string literal (#16516)

* Change data driven "str" type to represent a quoted string literal

* Update docs

Remove `send_unicode_hex_string()` (#16518)

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

Update pr_checklist.md (#16484)

Update readme.md template link from https://github.com/qmk/qmk_firmware/blob/master/data/templates/avr/readme.md to https://github.com/qmk/qmk_firmware/blob/master/data/templates/keyboard/readme.md

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

Typo in squeezing_avr.md (#16506)

Fixed typo in squeezing_avr docs.

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

fixed typo in docs/newbs_getting_started.md (#16501)

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

[Docs] Anchor link correction in rgb matrix docs (#16460)

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

Link WS2812 driver page from rgb feature docs (#16366)