Fix name of KEYBOARD_PATH env variable in README (tiny-pilot#141)

Delete unused enable-usb-hid file (tiny-pilot#120)

It's an artifact from key-mime-pi. In TinyPilot, ansible-role-tinypilot creates this file:

https://github.com/mtlynch/ansible-role-tinypilot/blob/21514df253b1fa9e6e6d390ef907f5544b2135eb/tasks/install_usb_gadget.yml#L22-L28

Fixes tiny-pilot#119

Limit the remote screen view to 85% of the browser's width (tiny-pilo…

…t#102)

Fix log event to log key code