[Glitch] Add more resilience to Emoji IDB upgrades

Port 1dc2abb9f5b430f80e771f214343983919cd543d to glitch-soc

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

app/javascript/flavours/glitch/actions/app.ts

@@ -10,3 +10,5 @@ interface ChangeLayoutPayload {
 }
 export const changeLayout =
   createAction<ChangeLayoutPayload>('APP_LAYOUT_CHANGE');
+
+export const needsReload = createAction('APP_NEED_RELOAD');