Settings storage journal leaks on Firefox

Seems some browser quirk causes journal leak on firefox with multiple duplicate addToCollection which causes it to become extremely bloated (megabytes worth) which causes initial load very slow since it would go replaying through each and every addToCollection.

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Original:

The page takes a really long time to load

Since some time ago, pleroma-fe started taking a very long time to even load the page, as if running synchorniously (firefox suggests stopping the JS on the page). The whole page is white for a while and then when it loads all timelines immediately become filled instead of loading them for a while like before.