Port 2587fcdd27 to glitch-soc

Port webui changes from cba2897108 to glitch-soc

Port 22e067bf5c to glitch-soc

Port 1951ff41b3 to glitch-soc

Port SCSS changes from 93c66f0c03 to glitch-soc

Port SCSS from 1e02dc8715

Port SCSS changes from 0f2fbf7d05
(I'm sorry for the animated rainbows)

Port d9b2f84c92 to glitch-soc

Port f9afd06221 to glitch-soc

Port 16fee0335f to glitch-soc

Port 61a9018607 to glitch-soc

Port 53c2164e9c to glitch-soc

Port 904a2479dd to glitch-soc

Port 4fd71accd4 to glitch-soc

Port d1f34151ae to glitch-soc

Port 8bf3e750ab to glitch-soc

Port d185f3ddaf to glitch-soc

This doesn't change anything for glitch-style fields, but those will go
away eventually

The rationale behind this is that if the user wants to report violent media,
they might not want to see it repeatedly. The “sensitive” property is still
kept, displaying different messages for hidden media depending on whether
they are marked as sensitive.

Port bddb330a8a to glitch-soc

Port c88e12fca6 to glitch-soc

This reverts commit 553cc28240.

This reverts commit 32974a58dc.

Port from 3c5006ec7f