[Keymap] Boy_314's Halfnhalf layout update (#5441)

[Keymap] Boy_314's Halfnhalf layout update (#5441)

* added Boy_.314's layout for halfnhalf keyboard

* reset rules.mk to default

* update keymap with qwerty layout, and enable tap dancing

* fixed formatting in layout visualization

* added rules.mk to custom layout

* added mod tap for ctrl/capslock

* fixed typo in config.h, remove excess in rules.mk, revert half_n_half rules.mk

* added Boy_.314's layout for halfnhalf keyboard

* reset rules.mk to default

* update keymap with qwerty layout, and enable tap dancing

* fixed typo in config.h, remove excess in rules.mk, revert half_n_half rules.mk

* added macros to raise layer

* fixed mismatched layout/comments

* fixed layout switching