v0.12.1

Features

• imu: deprecate WT901 and MPU9250 (J20) #54 (Pavels Veretennikovs)
• sound: deprecate DFplayer (R7,R13,J17,J23) #54 (Pavels Veretennikovs)
• bom: update LCSC codes #54 (Pavels Veretennikovs)
• firmware: add build for 0.11, identical to 0.10 #56 (Pavels Veretennikovs)

Bug Fixes

• exclude C3, C6 from BOM #54 (Pavels Veretennikovs)
• erc: remove unconnected SDA, SDL from WT901 #54 (Pavels Veretennikovs)
• drc: remove duplicate via #54 (Pavels Veretennikovs)
• ui: update switch footprints, make central hole smaller #54 (Pavels Veretennikovs)

Chores

• cleanup pcb, rearrange labels, add LCSC code #54 (Pavels Veretennikovs)
• 3d: update models, display bottom xESC headers #54 (Pavels Veretennikovs)
• add CoverUI to build artifacts #54 (Pavels Veretennikovs)