[Glitch] Fix error when sending new posts

Port 98c8c1ebd2 to glitch-soc

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

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

@@ -33,7 +33,7 @@ export const loadPending = timeline => ({
   timeline,
 });
 
-export function updateTimeline(timeline, status, { accept = undefined, bogusQuotePolicy = false }) {
+export function updateTimeline(timeline, status, { accept = undefined, bogusQuotePolicy = false } = {}) {
   return (dispatch, getState) => {
     if (typeof accept === 'function' && !accept(status)) {
       return;