✨ (llm-ios) animated launchscreen swift module

[LucasWerey]

✅ Checklist

• npx changeset was attached.
• Covered by automatic tests.
• Impact of the changes:
  • IOS modules
  • Splashscreen

📝 Description

This PR aims to create a custom swift module to handle the animated launchscreen on ios. This way we will be able to dismiss it from react-native part.

We need to trick a bit the native behaviour by removing the logo on the LaunchScreen and to display a view with the gif on it since native LaunchScreen only accepts static images.

The new animated splashscreen will run a gif directly. We will dismiss it once the main part of the app is rendered to avoid white / black screen. Also to avoid to have only half of the animation we ensure that the gif has been played at least once

=> I've reformatted a bit the appDelegate to follow xcode formatting

The main issue is with detox. We sometimes had duplicated WS connection. TO avoid this the custom splashscreen and loading view are hidden using launchArgs and BOOL isDetox = [[[NSProcessInfo processInfo] arguments] containsObject:@"-IS_TEST"];
All of the UI decisions have been validated by design team ! See bellow a video on multiple ios devices

❓ Context

• JIRA or GitHub link: LIVE-17159

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🧐 Checklist for the PR Reviewers

• The code aligns with the requirements described in the linked JIRA or GitHub issue.
• The PR description clearly documents the changes made and explains any technical trade-offs or design decisions.
• There are no undocumented trade-offs, technical debt, or maintainability issues.
• The PR has been tested thoroughly, and any potential edge cases have been considered and handled.
• Any new dependencies have been justified and documented.
• Performance considerations have been taken into account. (changes have been profiled or benchmarked if necessary)

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[sonarqubecloud]

Quality Gate failed

Failed conditions
0.0% Coverage on New Code (required ≥ 80%)

See analysis details on SonarQube Cloud