Refresh sync settings screen automatically

[CDRussell]

Task/Issue URL: https://app.asana.com/1/137249556945/project/608920331025315/task/1209669301264637

Description

Allows the sync settings screen to automatically refresh while it is being viewed. This is in part to provide a better UX to #5762.

Steps to test this PR

• Enter sync settings with sync disabled. Verify everything looks as expected and there is no visual updates to the UI
• Enable sync. Verify everything looks as expected and there is no visual updates to the UI.
• Sync with another device, such that you can see two devices in this view; your device, plus one other
• On the other device, turn off sync
• Back on the first device, verify it updates within the next 5s to show the other device is now gone
• Disable sync / automaticallyUpdateSyncSettings feature flag and return to the sync settings screen. Repeat the above test and verify the other device doesn’t automatically update since background refreshing is disabled (i.e., fallback to original behaviour when flag disabled)
• Smoke test any other related sync scenarios you think might be problematic because of this

[CDRussell]

• adds hints trying to improve read performance #5798
• Aligning recovery code with connect flow #5762
• Refresh sync settings screen automatically #5773 👈 (View in Graphite)
• develop

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[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

[cmonfortep]

LGTM.

Tested also a related additional scenario: remotely remove a device, and wait on the second device to be disconnected. It worked as expected 👍

[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.

[Copilot]

Copilot reviewed 4 out of 4 changed files in this pull request and generated no comments.