[Templates] Consider calling `Shortcircuit()` by default on the templates after `MapStaticAssets()`

[javiercn]

It makes the behavior more aligned with UseStaticFiles by executing the endpoint right away and skipping the middleware in the pipeline (similar to UseStaticFiles does).

[MihuBot]

I'm a bot. Here is a possible related and/or duplicate issue (I may be wrong):

• MapStaticAssets not behaving like UseStaticFiles middleware resulting in entire pipeline being run for every static asset - massively slow. #59315