feat: adding git repo

[Hubert-Szczepanski-SAP]

What this PR does / why we need it:

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

[Copilot]

Pull Request Overview

This PR adds functionality to create Flux CD Git repositories through a new dialog interface. The implementation includes a custom React hook for API interactions, a form dialog component with validation, and comprehensive test coverage for both the hook and UI component.

Key Changes:

• New custom hook useCreateGitRepository for handling Git repository creation via Kubernetes API
• React dialog component with form validation for repository configuration (name, URL, branch, interval, secretRef)
• Integration of create button and dialog into the existing GitRepositories list view

Reviewed Changes

Copilot reviewed 8 out of 9 changed files in this pull request and generated 7 comments.

Show a summary per file

File	Description
src/lib/api/types/flux/createGitRepository.ts	Type definitions for Flux GitRepository resource and API endpoint configuration
src/hooks/useCreateGitRepository.ts	Custom hook implementing repository creation logic with loading state and error handling
src/hooks/useCreateGitRepository.spec.ts	Comprehensive unit tests covering creation scenarios, namespace handling, and error cases
src/components/Dialogs/CreateGitRepositoryDialog.tsx	Form dialog component with validation for repository metadata and spec fields
src/components/Dialogs/CreateGitRepositoryDialog.module.css	Styling for the dialog form layout
src/components/Dialogs/CreateGitRepositoryDialog.cy.tsx	Cypress component tests verifying form behavior and validation
src/components/ControlPlane/GitRepositories.tsx	Integration of create button and dialog into the repositories list view
public/locales/en.json	Localization strings for dialog labels and messages
package-lock.json	Dependency lock file updates (version pinning and peer dependency reorganization)

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[andreaskienle]

Overall very nice, works like a charm! 🦄🙌 👍🏻 And I really appreciate that you took the time and added all those tests!

I added some remarks directly in the code below.