Modifications to `@TraceClassDecorator` and `@TraceMethodDecorator`

[s1gr1d]

Problem Statement

Angular minifies the code of the component name, so we can no longer rely on the component name from target.

Solution Brainstorm

The name could be manually passed to the decorator, so we can still show it. Otherwise, the component name should be <unknown>.

Also, we can cut the "Decorator" from the decorator name, so they will be @TraceClass and @TraceMethod.