[Bug] FFapp - Crashes when opened on a low-hardware Android device and takes long time in iOS when loading some series of exhibitions

[longbmk]

1. Open an Exhibition (E.g. "Patterns of Flow")
2. Scroll down
3. Open a series
4. Wait for some seconds

Observed result: FFapp crashes in Android, takes very long time in iOS.

Expected result: FFapp load series successfully in both Android and iOS

https://bitmark-inc.sentry.io/issues/5967564970/?referrer=slack&notification_uuid=b26d3112-122b-40f2-a868-8d5b54eb2ed3&environment=production&alert_rule_id=12526425&alert_type=issue

[AnHaNgoc]

Open an artwork in a series, app crashed after some seconds. (Exhibition: Patterns of Flow; Series: Changes, Cycles, and Shapes in Between)

https://bitmark-inc.sentry.io/issues/6000548034/?alert_rule_id=12526425&alert_type=issue&environment=production&notification_uuid=0865bf3e-2fb4-467c-b69d-817ccaa22378&project=6088804&referrer=slack

[ppupha]

The issue happens as there are 2 (or more than) video controllers at the same time: one for artwork in exhibition details, the other is in artwork details. This issue just happen on large videos (about more than 150MB).

Solution:

• At any given moment, there is only one video controller, which will be managed by the VideoControllerManager;
• When switching to a new video, the old video will display its thumbnail.
• It may take a few seconds to resume playback of the old video when returning to it.

[ppupha]

Note: We did do refactor for nft_rendering.