fix: white screen after splash screen (WPB-5439)

[ohassine]

WPB-5439 White screen after splash screen

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PR Submission Checklist for internal contributors

• The PR Title

  • conforms to the style of semantic commits messages¹ supported in Wire's Github Workflow²
  • contains a reference JIRA issue number like SQPIT-764
  • answers the question: If merged, this PR will: ... ³

• The PR Description

  • is free of optional paragraphs and you have filled the relevant parts to the best of your ability

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What's new in this PR?

Issues

On cold startup, the app is showing a white screen for some seconds after splash screen.

Causes (Optional)

Splash API limitation

Solutions

Keep showing the splash screen until the app is drawn

Needs releases with:

• GitHub link to other pull request

Testing

How to Test

• Start the app on cold startup
• you should not see white screen after splash

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PR Post Submission Checklist for internal contributors (Optional)

• Wire's Github Workflow has automatically linked the PR to a JIRA issue

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PR Post Merge Checklist for internal contributors

• If any soft of configuration variable was introduced by this PR, it has been added to the relevant documents and the CI jobs have been updated.

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References

1. https://sparkbox.com/foundry/semantic_commit_messages
2. https://github.com/wireapp/.github#usage
3. E.g. feat(conversation-list): Sort conversations by most emojis in the title #SQPIT-764.

[codecov]

Codecov Report

Merging #2417 (8136756) into develop (c503b72) will decrease coverage by 0.02%.
The diff coverage is 0.00%.

@@              Coverage Diff              @@
##             develop    #2417      +/-   ##
=============================================
- Coverage      41.48%   41.47%   -0.02%     
  Complexity      1085     1085              
=============================================
  Files            344      344              
  Lines          12430    12433       +3     
  Branches        1632     1632              
=============================================
  Hits            5157     5157              
- Misses          6788     6791       +3     
  Partials         485      485              

Files	Coverage Δ
...rc/main/kotlin/com/wire/android/ui/WireActivity.kt	0.00% <0.00%> (ø)

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[github-actions]

Test Results

680 tests  ±0   680 ✔️ ±0   8m 3s ⏱️ - 2m 58s
  98 suites ±0       0 💤 ±0 
  98 files   ±0       0 ❌ ±0 

Results for commit 8136756. ± Comparison against base commit c503b72.

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!

[AndroidBob]

Build 1760 succeeded.

The build produced the following APK's:

• com.wire.android-v4.5.0(8089963)(8089963)-staging-compat.apk