Replace glitch-soc's collapsed toots with upstream's “Read more” (#2916)

* Remove glitch-soc's post collapse feature

* Get rid of the infamous `parseClick`

* Remove unused CSS

* Use upstream's “Read More” implementation

* Update translation strings

app/javascript/flavours/glitch/containers/status_container.js

@@ -26,6 +26,7 @@ import {
   unmuteStatus,
   deleteStatus,
   toggleStatusSpoilers,
+  toggleStatusCollapse,
   editStatus,
   translateStatus,
   undoStatusTranslation,
@@ -191,6 +192,11 @@ const mapDispatchToProps = (dispatch, { contextType }) => ({
     dispatch(toggleStatusSpoilers(status.get('id')));
   },
 
+  onToggleCollapsed (status, isCollapsed) {
+    dispatch(toggleStatusCollapse(status.get('id'), isCollapsed));
+  },
+
+
   deployPictureInPicture (status, type, mediaProps) {
     dispatch((_, getState) => {
       if (getState().getIn(['local_settings', 'media', 'pop_in_player'])) {