[Glitch] Fix "You might be interested in" flashing while searching in web UI

Port 0a3fa034fc to glitch-soc

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

app/javascript/flavours/glitch/actions/search.js

@@ -32,6 +32,7 @@ export function submitSearch() {
     const value = getState().getIn(['search', 'value']);
 
     if (value.length === 0) {
+      dispatch(fetchSearchSuccess({ accounts: [], statuses: [], hashtags: [] }, ''));
       return;
     }