[FEATURE REQUEST] include a button to convert a pad to read-only on mobile devices

[brinerustle]

reading pads on mobile devices can be very difficult, since minor touches start editing the file, there are also lots of visualization problems depending on the browser. Please consider adding a button that converts the entire document to a read-only document, and reduces all of the other buttons to a single button to return to editing mode.

[brinerustle]

on every browser i tried (vanadium, firefox focus, duckduckgo, tor broswer) i got this visualization, only half of the screen, making it that much harder to simply read without editing by mistake.