fix: blocked user sees conversation is blocked - WPB-24403

[netbe]

WPB-24403 [iOS] The blocked user no longer appears in the conversation list

Issue

When an other user is blocked, the user is removed from the 1:1 conversation's member. This was triggering some codepath that detects a 1:1 conversation with only the self member (= other user deleted account) and wiped the mls conversation locally.

This resulted visually in showing to the other user that the conversation was readonly.

Solution:

• moved app version migration to 4.22 -- it should not be an issue upgrading.
• Prevent the conversation to set its mlsStatus as invalid if there's a oneOnOneUser.
• Align conversation UI on self user side (blocker's side) to other platform: hide the input bar and show "You blocked this user"

Testing

1. user A blocks an external user B
2. check the conversation from user B side: user B can still send message but are not received
3. user A sees the conversation with no input bar and a message "You blocked this user"

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Checklist

• Title contains a reference JIRA issue number like [WPB-XXX].
• Description is filled and free of optional paragraphs.
• Adds/updates automated tests.

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UI accessibility checklist

If your PR includes UI changes, please utilize this checklist:

• Make sure you use the API for UI elements that support large fonts.
• All colors are taken from WireDesign.ColorTheme or constructed using WireDesign.BaseColorPalette.
• New UI elements have Accessibility strings for VoiceOver.

[github-actions]

Test Results – WireDomain

  1 files  141 suites   14s ⏱️
564 tests 564 ✅ 0 💤 0 ❌
565 runs  565 ✅ 0 💤 0 ❌

Results for commit 20c368b.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results – WireSyncEngine

1 135 tests   1 135 ✅  1m 20s ⏱️
  135 suites      0 💤
    1 files        0 ❌

Results for commit 20c368b.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results – WireRequestStrategy

968 tests   968 ✅  44s ⏱️
108 suites    0 💤
  1 files      0 ❌

Results for commit 20c368b.

♻️ This comment has been updated with latest results.

[github-actions]

Test Results – Wire-iOS

1 897 tests   1 870 ✅  2m 42s ⏱️
  301 suites     27 💤
    1 files        0 ❌

Results for commit 20c368b.

♻️ This comment has been updated with latest results.

[datadog-wireapp]

🎉 All green!

❄️ No new flaky tests detected
🧪 All tests passed

_{This comment will be updated automatically if new data arrives.
🔗 Commit SHA: ede118b | Docs | Give us feedback!}

[samwyndham]

LGTM

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud