Port ba917e15f6 to glitch-soc

Port 74dae9458d and related to glitch-soc

Port the SCSS changes from cb74c0cfe4 to glitch-soc

Port SCSS changes from 5acd5315f2 to glitch-soc

Port 8c601b54cc to glitch-soc

Port 58852695c8 to glitch-soc

* Prevent Enter keypresses from triggering dropdown display toggle twice
* Give focus to first/selected item of dropdown menus
* Implement keyboard navigation in generic dropdown menus

Partial port from ef7d64c801 to glitch-soc

Port ad5d3134e4 to glitch-soc

Port 660cb058e1 to glitch-soc flavour

glitch-soc-style still in backup, both sharing the same SCSS style

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

As we are already using the new getSnapshotBeforeUpdate lifecycle method,
we apparently cannot use the deprecated ones at all in this component.

Port 53b1d88873 to glitch-soc

Port 23106844a1 to glitch-soc

Port 597948fb13 to glitch-soc

Backport 386365090c

Inspired from b6003afcdb but using component
properties instead of redux store for hidden/revealed state.

Backports daefbd66a6

Port ffb2b8ef8c to glitch-soc

Port 08e4c78e78 to glitch-soc.

SCSS fix inspired by 69f13e7bca.

Port ff7941e652 to glitch-soc

Port 1a37d7e252 to glitch-soc

Port fd87e5a53b to glitch-soc

This prevents changing the status' height and triggering jumps in the TL

Port the display part of the following commits to glitch-soc:
* 90f12f2e5a
* b170627ceb
* 11697d6894
* 56eb5c3f34

In order to keep my sanity when porting changes between glitch-soc and upstream.

Port b08ab329f4 to glitch-soc

It was currently full-size

Port the video-player part of 036dd98abb to
glitch-soc. MediaGallery part ignored since it has diverged quite a bit.

This fixes #423

Port ecdac9017e to glitch-soc