fix: reintroduced code wrongly removed - WPB-23688

[jullianm]

WPB-23688 [iOS] Opening & Loading behavior

Issue

This PR reintroduced code wrongly removed when resolving a merge conflict in this cherry-pick here: https://github.com/wireapp/wire-ios/pull/4528/changes#diff-575e57d0e30c45ea28fa9b8e9c199b6f02118ab51e1d6e1221f95d7ef2681310

Figma: https://www.figma.com/design/grnVU2vAihHXwYgHryu2xE/Drive--Cells-?node-id=12851-21737&p=f&m=dev

Testing

Describe how to test.

Optional: attachments like images, videos, etc.

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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.

[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

[github-actions]

Test Results

2 149 tests   2 122 ✅  4m 5s ⏱️
  355 suites     27 💤
    2 files        0 ❌

Results for commit 36accfb.

Summary: workflow run #24669833050
Allure report (download zip): html-report-29360-fix_document-header-state-text-view-missing