Improve Structure & Add TestFlight Deployment

[PSchmiedmayer]

Improve Structure & Add TestFlight Deployment

💡 Proposed solution

• Adds the Xcode Project back in the repo
• Fixes build errors
• Uses the Image Source Package as a dependency
• Fixes the UI tests
• Fixes SwiftLint & REUSE Spec
• Use Self Hosted runners for the build pipeline
• Add capability to deploy to TestFlight
• Cleanup code and fix privacy permissions strings

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[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (main@c86c07d). Click here to learn what that means.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main       #2   +/-   ##
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  Coverage        ?   22.70%           
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  Files           ?       31           
  Lines           ?     1097           
  Branches        ?        0           
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  Hits            ?      249           
  Misses          ?      848           
  Partials        ?        0           

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