Tab Tray diffable data source apply snapshot causes hangs

[data-sync-user]

The TabDisplayDiffableDataSource regenerates a UUID each time apply snap shot is called forcing the snapshot to always be different. This causes a data reload even when it is not necessary. This was put in place as the best strategy at the time to force the section header for inactive tabs to reload without crashing on iOS 15.

• Original PR

This was causing hangs because newState on the TabTray is called often (by design), but reloading the table each time is a performance issue. An initial fix was put in to just prevent the reload from happening but does not fix the underlying problem. We can instead use information on the tabState to force this reload instead of doing it every time with the UUID.

• Example of this in HomepageDiffableDataSource

┆Issue is synchronized with this Jira Bug