Finish, improve, clean up FYSETC_MINI_12864 revisions (#13871)

Marlin/Configuration.h

Marlin/src/inc/Conditionals_LCD.h

Marlin/src/inc/SanityCheck.h

Marlin/src/pins/pins_BIGTREE_SKR_V1.3.h

Marlin/src/pins/pins_FYSETC_F6_13.h

Marlin/src/pins/pins_MKS_SBASE.h

Marlin/src/pins/pins_PRINTRBOARD_G2.h

Marlin/src/pins/pins_RAMPS.h

Marlin/src/pins/pins_RAMPS_FD_V1.h

Marlin/src/pins/pins_RURAMPS4D_11.h

Marlin/src/pins/pins_RURAMPS4D_13.h

config/default/Configuration.h

config/examples/3DFabXYZ/Migbot/Configuration.h

config/examples/AlephObjects/TAZ4/Configuration.h

config/examples/AliExpress/CL-260/Configuration.h

config/examples/AliExpress/UM2pExt/Configuration.h

config/examples/Anet/A2/Configuration.h

config/examples/Anet/A2plus/Configuration.h

config/examples/Anet/A6/Configuration.h

config/examples/Anet/A8/Configuration.h