Currently the view for archived and shared boards (when there are none) is just an empty list with a header. This is quite confusing as people could see the header as placeholder text.
There should be the normal emptycontent view as it’s also in files for empty folders (simply use the same HTML :)
In the shared boards view, we could even say in the emptycontent view:
No shared boards yet
[ Create a new board ] and share it with people
With the button directly there.
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