Umbrella issue: improve shortcuts/hotkeys/ux behaviour

[mhsdesign]

Description

i really like shortcodes/keyboard navigation in programs -> as they make you fast. way faster than always using the mouse. and i think neos cms editors should also profit from a good keyboard ux to improve their workflow.

see https://github.com/neos/neos-ui/issues/3099 see https://github.com/neos/neos-ui/issues/3032 see https://github.com/neos/neos-ui/issues/3033 see https://github.com/neos/neos-ui/issues/3030 see https://github.com/neos/neos-ui/issues/3031 see https://github.com/neos/neos-ui/issues/3137 see https://github.com/neos/neos-ui/issues/3138 see https://github.com/neos/neos-ui/issues/3145

i would like to see the use of more conventional shorcuts. is there a reason we dont use a ctrl + key combination like a 'normal' desktop app? (as far as i know its pretty easy to determine if ctrl was pressed ... -> its in the event)

i found these shortcuts quite odd to remember as one is used to: simpleKeys or modifier (alt, ctrl) and simpleKey