[bugfix] Store /api/web/settings state locally for persistence (#2)

This also prevents the 'Can't verify CSRF token authenticity' errors that popup whenever you modify a 'web setting', such as the column layout.

~~NB: There is something funky going on. This works 99% of the time and sometimes doesn't?~~ Fixed now, there was two bits of stuff in verify_state doing the same thing, removed the duplicate.

Reviewed-on: https://codeberg.org/superseriousbusiness/masto-fe-standalone/pulls/2
Co-authored-by: julia <midnight@trainwit.ch>
Co-committed-by: julia <midnight@trainwit.ch>

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

@@ -26,9 +26,8 @@ const debouncedSave = debounce((dispatch, getState) => {
 
   const data = getState().get('settings').filter((_, path) => path !== 'saved').toJS();
 
-  api(getState).put('/api/web/settings', { data })
-    .then(() => dispatch({ type: SETTING_SAVE }))
-    .catch(error => dispatch(showAlertForError(error)));
+  localStorage.setItem('web_settings', JSON.stringify(data));
+  dispatch({ type: SETTING_SAVE });
 }, 5000, { trailing: true });
 
 export function saveSettings() {