* Made static backlight pwm resolution configurable
* Made breathing backlighting configurable too
* Finished my ifdef
* Ran clang-format
* Added missing semi-colon
* Solved weird behaviour by right-shifting the right amount
* Made breathing period scaled on actual pwm frequency
* Made the low end deadzone scaled on the top value
* Moved 'pwm_frequency' declaration outside ifdef
* Fixed 'never used' error
* Fixed 'never used' error
* Fixed breathing ISR to 120Hz
* Removed pwm_frequency constant
Constant is no longer needed since running the breathing ISR at a fixed 120Hz
* Re-add brightness limiting
* re-introduce scaling
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