[Glitch] Enable ESLint react/no-deprecated

Port b878e3d8df to glitch-soc

Signed-off-by: Claire <claire.github-309c@sitedethib.com>

app/javascript/flavours/glitch/features/favourited_statuses/index.jsx

@@ -34,7 +34,7 @@ class Favourites extends ImmutablePureComponent {
     isLoading: PropTypes.bool,
   };
 
-  componentWillMount () {
+  UNSAFE_componentWillMount () {
     this.props.dispatch(fetchFavouritedStatuses());
   }