[jssrc2cpg] Fix TS Annotations

[max-leuthaeuser]

This PR puts expressions from TS class annotation into the respective constructor blocks.

[maltek]

Seems that the minimal example I provided you was a bit too minimal: the original customer code used some complex expressions inside the NgModule() annotation, which contained a lambda somewhere deep down. This check won't catch that.

I think the root cause is putting arbitrary expressions below Annotation nodes to begin with. These nodes were only meant for pure compile-time constructs like in Java, and should not contain arbitrary expressions with side-effects. E.g. pythonsrc lowers decorators to method calls and doesn't use annotation nodes at all.

That's a larger change where we have to tread carefully with compatibility of backend passes, but it may be unavoidable.