fix: initial scroll to first unread message was broken when there more than 55 unread messages

[santhoshvai]

🎯 Goal

While @khushal87 investigated #2004, he found that when there were large number of unread messages, the scroll to first unread was broken

🛠 Implementation details

The main fix is f35b448. This fixed a lot of issues

Demo

Simulator.Screen.Recording.-.iPhone.14.-.2023-03-20.at.19.03.41.mp4

🧪 Testing

• Open sample app
• Login as "vir"

Case 1

• Load 7 unread messages - for i in {1..7}; do stream-cli chat send-message --user "25100e34-4450-3dcb-82eb-fbc34d2b421b" --channel-id "c1ece5ff-a5b1-4e4c-305c-4313fbc2e876" --channel-type "messaging" --text date +"%T"; done
• open the channel, should highlight the unread message, but should NOT show the unread banner on top of the message
• after 1 or 2 seconds the channel's unread count must become 0

Case 2

• Go to homepage
• Load 80 unread messages - for i in {1..80}; do stream-cli chat send-message --user "25100e34-4450-3dcb-82eb-fbc34d2b421b" --channel-id "c1ece5ff-a5b1-4e4c-305c-4313fbc2e876" --channel-type "messaging" --text date +"%T"; done
• open the channel, should highlight the unread message, and SHOULD show the unread banner on top of the message
• scroll to bottom
• after 1 or 2 seconds the channel's unread count must become 0

And there should be no unnecessary blank list when this happens. This was a rerender issue before!

☑️ Checklist

• I have signed the Stream CLA (required)
• PR targets the develop branch
• Documentation is updated
• New code is tested in main example apps, including all possible scenarios
  • SampleApp iOS and Android
  • Expo iOS and Android

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

51.4% Coverage
0.0% Duplication

[stream-ci-bot]

🎉 This PR is included in version 5.12.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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