[Vue] make sure chunk assets can be removed #18929

Description:

The current asset removal functionality does not take into account JS chunks, this PR fixes that. This lead to inaccurate JS chunk file sizes when switching between branches, which I noticed.

Review

• [ ] Functional review done
• [ ] Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• [ ] Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• [ ] Security review done
• [ ] Wording review done
• [ ] Code review done
• [ ] Tests were added if useful/possible
• [ ] Reviewed for breaking changes
• [ ] Developer changelog updated if needed
• [ ] Documentation added if needed
• [ ] Existing documentation updated if needed

@diosmosis as you are on that part again. Could you please check why the tests on PHP8 are failing? It seems to be related to the manipulation of $GLOBALS['MATOMO_PLUGIN_DIRS'] in the tests you had added in #18761 .

@sgiehl should be fixed