Rename the checkbox label CSS tokens of Angular Material 18

Proprietary

Material 18 moved the checkbox label tokens from --mdc-form-field-label-text-* to --mat-checkbox-label-text-*. Renames them in stylesheets, templates and TypeScript strings.

org.openrewrite.angular.material.RenameMaterial18Tokens
mod run . --recipe=org.openrewrite.angular.material.RenameMaterial18Tokens

Install it once, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.