Keyword/phrase filtering (#7905)

* Add keyword filtering

    GET|POST       /api/v1/filters
    GET|PUT|DELETE /api/v1/filters/:id

- Irreversible filters can drop toots from home or notifications
- Other filters can hide toots through the client app
- Filters use a phrase valid in particular contexts, expiration

* Make sure expired filters don't get applied client-side

* Add missing API methods

* Remove "regex filter" from column settings

* Add tests

* Add test for FeedManager

* Add CustomFilter test

* Add UI for managing filters

* Add streaming API event to allow syncing filters

* Fix tests

app/javascript/mastodon/features/status/index.js

@@ -58,7 +58,7 @@ const makeMapStateToProps = () => {
   const getStatus = makeGetStatus();
 
   const mapStateToProps = (state, props) => {
-    const status = getStatus(state, props.params.statusId);
+    const status = getStatus(state, { id: props.params.statusId });
     let ancestorsIds = Immutable.List();
     let descendantsIds = Immutable.List();
 
@@ -336,6 +336,7 @@ export default class Status extends ImmutablePureComponent {
         id={id}
         onMoveUp={this.handleMoveUp}
         onMoveDown={this.handleMoveDown}
+        contextType='thread'
       />
     ));
   }