Port 1b70d7ed7c0fd3a9fcf028bf76b8c62ac8b3897f to glitch-soc
Co-authored-by: Claire <claire.github-309c@sitedethib.com>
Signed-off-by: Claire <claire.github-309c@sitedethib.com>
Fixes#2220
This drops the ability to shift+click on “Back” to get back to a pinned
column, but that was inconsistent, broken, and undocumented.
This also brings us slightly closer to upstream.