Add option to disable keyboard shortcuts in viewer#3032

Shivam-Bhardwaj wants to merge 1 commit intogoogle-deepmind:maingoogle-deepmind/mujoco:mainfrom

Shivam-Bhardwaj:add-keyboard-disable-optionShivam-Bhardwaj/mujoco:add-keyboard-disable-optionCopy head branch name to clipboard