Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `README.md`:
  We have completely different contents. Kept our version.
- `package.json`:
  Not a real conflict, just an upstream dependency udpated
  textually too close to a glitch-soc-only dependency.
  Updated dependencies like upstream.
- `streaming/index.js`:
  Conflict due to code style changes on parts that were
  modified in glitch-soc to handle local-only toots.
  Changed style according to upstream.

app/javascript/mastodon/features/hashtag_timeline/components/column_settings.js

@@ -33,8 +33,8 @@ class ColumnSettings extends React.PureComponent {
   tags (mode) {
     let tags = this.props.settings.getIn(['tags', mode]) || [];
 
-    if (tags.toJSON) {
-      return tags.toJSON();
+    if (tags.toJS) {
+      return tags.toJS();
     } else {
       return tags;
     }