applet.interface.ps2_host: add missing guard state change.

revC2: fix level shifter MPN Thanks @gregdavill for spotting & reporting this.

revC2: Removed the solder mask minimum width setting. As recommended by KiCad this setting should only be used when explicitly asked by the PCB manufacturer. It depends on their needs and capabilities and is usually done as part of gerber file pre processing done by the PCB manufacturer.

revC2: Moved the front mfr logo anchor to a better spot.

revC2: Corrected resistor pack footprints. The outer pads of the resistor pack footprints were slightly too small. This can cause assembly reliability isues.

revC2: Corrected the SOT-143 footprint. The footprint in the KiCad library works but it is too large and could cause assembly reliability issues. The new footprint and 3D model are based on the official Diodes Inc data and match the part we are using.

revC2: Minor footprint type corrections. The reset button had to be TH. Logos should be virtual.

revC2: add dimension drawings for the mounting holes

revC2: re-route ~MR trace on the bottom layer to not split the GND plane below voltage regulators

revC2: Updated the tact switch footprint to include 3d model. Also fixed up the silkscreen and fab layers.