To align with the updated style guide, Angular v20 will generate modules
with file extension `module` type prefixed with a `-` separator instead of
a `.` by default. Projects will automatically use this naming convention.
Projects can however opt-out by setting the `typeSeparator` option to `.`
for the module schematic. This can be done as a default in the `angular.json`
or directly on the commandline via `--type-separator=.` when executing `ng generate`.
As an example, `example.module.ts` will now be named `example-module.ts`.
The TypeScript declaration will continue to contain `Module` such as with `ExampleModule`.