chore: update angular

[nmerget]

Proposed changes

closes #3888
closes #3344

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Refactoring (fix on existing components or architectural decisions)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation Update (if none of the other choices apply)

Further comments

[github-actions]

🔭🐙🐈 Test this branch here: https://db-ux-design-system.github.io/core-web/review/chore-update-angular

[Copilot]

Pull Request Overview

This PR refactors several Angular components and related build scripts to update the Angular integration. Key changes include removing the standalone flag from multiple components, adjusting error message handling in components, and updating Angular-specific element overwrites in build scripts.

Reviewed Changes

Copilot reviewed 25 out of 28 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
showcases/angular-showcase/src/app/components/switch/switch.component.ts	Removed "standalone: true" from component metadata.
showcases/angular-showcase/src/app/components/select/select.component.ts	Removed "standalone: true" from component metadata.
showcases/angular-showcase/src/app/components/radio/radio.component.ts	Removed "standalone: true" from component metadata.
showcases/angular-showcase/src/app/components/input/input.component.ts	Removed "standalone: true" and re-ordered metadata properties.
showcases/angular-showcase/src/app/components/home/home.component.ts	Removed "standalone: true" from component metadata.
showcases/angular-showcase/src/app/components/form/wrapper/wrapper.component.ts	Removed "standalone: true" from component declaration.
showcases/angular-showcase/src/app/components/form/radios/radios.component.ts	Removed "standalone: true" from component declaration.
showcases/angular-showcase/src/app/components/form/form.component.ts	Removed DefaultComponent from the imports array when using webComponents.
showcases/angular-showcase/src/app/components/checkbox/checkbox.component.ts	Removed "standalone: true" from component metadata.
showcases/angular-showcase/src/app/app.component.ts	Removed unused directive import from component metadata.
packages/components/src/shared/model.ts	Updated model type key from _invalidMessageId to _invalidMessage.
packages/components/src/components/*.lite.tsx	Adjusted invalidMessage handling to use computed state instead of props directly.
packages/components/scripts/post-build/components.ts	Updated Angular element overwrite types for various components.
packages/components/scripts/post-build/angular.ts	Modified ElementRef type replacement for Angular components.

Files not reviewed (3)

• output/angular/package.json: Language not supported
• showcases/angular-showcase/angular.json: Language not supported
• showcases/angular-showcase/package.json: Language not supported

Comments suppressed due to low confidence (3)

showcases/angular-showcase/src/app/components/switch/switch.component.ts:15

• Verify that removing 'standalone: true' does not lead to module declaration issues for this component.

-	standalone: true

showcases/angular-showcase/src/app/components/form/form.component.ts:31

• Double-check that removing DefaultComponent from the webComponents imports array is intentional, as it could affect the component rendering or behavior.

-			DefaultComponent,

packages/components/scripts/post-build/angular.ts:17

• Confirm that updating ElementRef to include '<HTMLElement | null>' aligns with all usages in the codebase and does not cause unexpected type issues.

return line.replace(': ElementRef', ': ElementRef<HTMLElement | null>');