[FEATURE] - UI model support only show icon

[余腾靖]

"fileAccess.uiMode": "iconOnly"

Using pen icon to represent readable and writeable
Using pen with cross icon represent only readable

[Alessandro Fragnani]

Hi @tjx666 ,

Thanks for your suggestion.

[Alessandro Fragnani]

I wonder if I should replace the 🚫 (circle-dash) icon with the new 🔒 (lock-small), following the new readonly attribute that VS Code has added a few releases ago.

So, the fileAccess.uiMode setting would become:

uiMode	Readonly	Writeable
complete	🔒 [RO]	🖊️ [RW]
simple	[RO]	[RW]
iconOnly	🔒	🖊️