refactor(@schematics/angular): remove explicit strict true in tsconfig template for TS6 compatibility

[alan-agius4]

TypeScript 6 enables strict mode by default. This change updates the workspace schematic's tsconfig.json template to omit "strict": true when strict mode is desired (relying on the default), and explicitly sets "strict": false when it is disabled.

[gemini-code-assist]

Code Review

This pull request modifies the tsconfig.json template to remove the explicit "strict": true setting when strict mode is enabled, while adding an explicit "strict": false when it is disabled. Feedback suggests that removing the explicit strict setting relies on TypeScript 6.0 defaults and will silently disable strict mode for users on older versions. It is recommended to keep the "strict": true setting explicit to ensure consistent type safety across all supported TypeScript versions and to update the corresponding tests to reflect this requirement.

[alan-agius4]

This PR was merged into the repository. The changes were merged into the following branches:

• main: f3d9ef6

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