Media-only toggles could not be used on pinned columns.
The commit fixes this problem.

Port 4f42238c29 to glitch-soc

Port 90b64c0069 to glitch-soc

This is both for consistency with account timelines and to not mess with
the logic used to decide whether going back in the browser's history is
going to make us leave the WebUI.

Port 8182b61518 to glitch-soc

Port 4eeda67727 to glitch-soc

Port 06252ec71e to glitch-soc

Port 5ea643b279 to glitch-soc

Port 7403e5d306 to glitch-soc

Fixes #700

Port 66dbb59aa1 to glitch-soc

Port 9a1a55ce52 to glitch-soc