chore: setup iOS pipeline

[AsCress]

Sets up the iOS pipeline for our flutter app.

Screenshots / Recordings

N/A

Checklist:

• No hard coding: I have used resources from strings.xml, dimens.xml and colors.xml without hard coding any value.
• No end of file edits: No modifications done at end of resource files strings.xml, dimens.xml or colors.xml.
• Code reformatting: I have reformatted code and fixed indentation in every file included in this pull request.
• No extra space: My code does not contain any extra lines or extra spaces than the ones that are necessary.

@adityastic Haven't made any changes to Info.plist yet, because I'm not sure about iOS permissions yet. Currently, the app is in the development stage and doesn't require any explicit permissions as of such. Maybe we can set them up at a later stage ?

Summary by Sourcery

Set up the iOS CI pipeline to build and deploy the app to TestFlight.

Enhancements:

• Update iOS project settings and assets.

CI:

• Add a workflow to build and deploy iOS apps.
• Set up code signing and certificates for iOS builds.
• Build iOS IPA with code signing for pushes to the "flutter" branch and without code signing for pull requests.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request sets up the iOS pipeline for the flutter app. It includes changes to the github workflow, the iOS action, and some minor changes to the android and ios project files.

Flow diagram for iOS build process

flowchart TD
    Start[Start Build] --> Check{Check Event Type}
    Check -->|Pull Request| NoCert[Build without Code Signing]
    Check -->|Push to flutter branch| Auth[Setup Certificates]
    Auth --> Cert[Build with Code Signing]
    Cert --> Upload[Upload to TestFlight]
    NoCert --> End[End Build]
    Upload --> End

Loading

File-Level Changes

Change	Details	Files
Added a new job to the push workflow to build and deploy the iOS app.	Added a new job named 'ios' to the push workflow. Added a step to prepare the iOS key. Added a step to setup certificates. Added a step to run the iOS workflow action. Added a step to push the app to testflight.	.github/workflows/push-event.yml
Modified the iOS action to build the IPA with or without code signing based on the event type.	Added a conditional step to build the IPA without code signing for pull requests. Added a conditional step to build the IPA with code signing for other events.	.github/actions/ios/action.yml
Updated the android manifest to use the correct launcher icon.	Changed the icon attribute to use the correct launcher icon.	android/app/src/main/AndroidManifest.xml
Added gitignore files for android and ios.	Added a gitignore file for android. Added a gitignore file for ios.	android/.gitignore ios/.gitignore
Updated the ios project file.	Updated the ios project file.	ios/Runner.xcodeproj/project.pbxproj
Updated the ios app icon configuration.	Updated the ios app icon configuration.	ios/Runner/Assets.xcassets/AppIcon.appiconset/Contents.json
Updated the pubspec lock file.	Updated the pubspec lock file.	pubspec.lock

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[sourcery-ai]

Hey @AsCress - I've reviewed your changes and found some issues that need to be addressed.

Blocking issues:

• Missing implementation for code signing build step (link)

Overall Comments:

• The iOS IPA build with code signing section is empty - please add the appropriate flutter build command for signed builds

Here's what I looked at during the review

• 🔴 General issues: 1 blocking issue
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[github-actions]

Build successful. APKs to test: https://github.com/fossasia/pslab-android/actions/runs/12962098924/artifacts/2484498091