## Issue
- Slow for users with many channels.
- The need to do it in Sync Loop is more applicable to Desktop.
## Approach
- Just remove it from sync loop.
- It will still be called when entering `/$/channels`, so that's an alternative to fix things when it is out of sync.
## Issue
In 38c13cf5, an additional `doGetAndPopulatePreferences` was added in `doSignIn` to ensure we have populated the preferences at least once. With that, `doHandleSyncComplete` can skip `doGetAndPopulatePreferences` is there is no change in the hash.
The addition broke the "initial sync lock", thus incorrectly allowing users to change preferences when the process is not completed.
## Change
I think the additional call is no longer needed since we now store a local hash for comparison, so `doGetAndPopulatePreferences` wouldn't be incorrectly skipped in the first ever `doHandleSyncComplete`.
## Repro
1. Follow a channel.
2. When `preference_set` is sent, unfollow the channel.
3. A few seconds later, the final setting reflects (1) instead of (2).
The current sync loop involves doing a final `sync/get` at the end. While not necessary for the scenario above, the code flow covers various cases, so it's still needed for now.
## Approach
Implement an abort mechanism to the sync-loop.
When syncing from the `buildSharedStateMiddleware` loop, generate an ID for each sync session, and only store the latest one. Pass the ID to the completion-callback (and other places as needed), so we can check if our session is still the latest one before executing the callback.
The check for invalidation can also be placed in more places to cut off the sync process earlier, but it's only done for 2 critical places for now.
Props: either use primitives, stable references or memoized objects to reduce renders. This update will simplify the existing `areEqual`. It is still needed though as some props are hard to memoize from where they are called, or should simply be ignore.
## Ticket
Part of "#385 Defer api.odysee.com calls to their respective pages / install new"
## Change
Pull out `notification/categories` from `doNotificationList` and fetch it in Notifications Page. I don't there there are other places that need it for now.
## Repro
- Do a search like "Test" and filter to "Channels Only".
- Follow a bunch @test channels
- Unfollow any one of them. All of them gets unfollowed.
## Notes
The change in b9fc9b63 to compare the lower-case channel name probably made it even worse, since "@TeSt" would be removed too.
## Change
Not sure why channel name was used in the first place ... perhaps it was to cover canon vs perm uri?
Anyway, comparing uri makes more sense, so doing that instead.
Was trying to save one event listener in the previous implementation and rely on other redux state-changes to spark a GUI update, but turns out there are scenarios where nothing is updated and the "offline" nag is stuck on screen.
## Change
Do it properly using the event listeners. The nag should now update promptly.
Changing the string means it will stay in English until retranslated. Reverting so that it can re-use existing translated database.
I don't think there is a clash in the `followingCount` variable, so the change was probably unnecessary.
