[Feature] Add seeMore as a standard shortcut for CUs
[Minor] Add comment
[HTML/CSS] Add help text in basic options UI
[Feature] Allow backspace to delete parts of shortcut while editing it
[CSS] Improved delete button style in basic options
[Feature] In-progress basic options UI. Save modifier 'meta' as 'command' on Mac
Merge branch 'master' of https://github.com/MakeBetter/Units