* move RGB Matrix rules to keyboard level
* move PERMISSIVE_HOLD config to keyboard level
* annepro2.c: convert tabs to spaces
* refactor rules.mk files
Reformats each version's `rules.mk` file to be arranged more similarly to those of the rest of the keyboards in QMK.
No logic change.
* annepro2.c: allow compilation without RGB Matrix
Wraps the `led_enabled` definition and the `KC_AP_RGB_*` keycodes in `#ifdef RGB_MATRIX_ENABLE`, allowing successful compilation if the user sets `RGB_MATRIX_ENABLE = no`.
* rework readme files
Reworks the main `readme.md` file to be more friendly to GitHub viewing, and removes the single-line version-specific readme files (exposes the main readme to QMK Configurator users).
* info.json: update maintainer value
* info.json: apply friendly formatting
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