* eframe web: Add WebInfo::user_agent
* Deprecate `Modifier::ALT_SHIFT`
* Add code for formatting Modifiers and Key
* Add type KeyboardShortcut
* Code cleanup
* Add Context::os/set_os to query/set what OS egui believes it is on
* Add Fonts::has_glyph(s)
* Add helper function for formatting keyboard shortcuts
* Faster code
* Add way to set a shortcut text on menu buttons
* Cleanup
* format_keyboard_shortcut -> format_shortcut
* Add TODO about supporting more keyboard sumbols
* Modifiers::plus
* Use the new keyboard shortcuts in emark editor demo
* Explain why ALT+SHIFT is a bad modifier combo
* Fix doctest
