* Improve handlers to only create/update needed recors and add loading indicator while posts are being loaded
* Tweak team handlers
* check for delete_at as falsey
* more handler tweaks
* Preference handler
* Small refactor on category body
* Add WS reconnect FETCHING_POSTS event
* Fix handleChannelViewedEvent when channel screen is not visible
* Replace blinking dot with spinner
* update snapshots to reflect the new spinner
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