Add configurable skip level for minor updates

[Gabriel Dufresne (GabrielDuf)]

This pull request introduces a more flexible way to skip minor updates for packages by allowing users to specify which version-number component (minor, patch, or remainder) counts as a "minor" update. This is reflected in both the UI and backend logic, so users can fine-tune update-skipping behavior. The changes also include updates to the interface, serialization, and tests to support this new feature.

Skip minor updates: configurable level

• UI changes:

  • The install options dialog now lets users choose after which version-number component ("minor", "patch", or "remainder") updates should be ignored, using a new ComboBox and supporting labels (InstallOptionsControl.axaml, InstallOptionsViewModel.cs, lang_en.json).

• Backend logic:

  • The InstallOptions class now tracks the skip-minor level and provides a default and validation.
  • The IPackage interface and implementations now accept a level parameter for determining if an update is minor, and the logic for this is refactored for clarity and flexibility.

• Update evaluation:

  • The package loader now respects the configured skip-minor level when deciding whether to skip updates, and logs the skip level for clarity.

• Tests:

  • A new test verifies that updates are skipped or not according to the configured skip-minor level, ensuring correct behavior.