fix: Allow partial match for manual sync

[simonstratmann]

Fixes: #9326

Description
Current behavior: If files someFile.txt and someFile.html are changed and a manual sync pattern *.html exists then no sync is made because the first file does not match.

With this MR partial matches should be correctly recognized.

Follow-up Work (remove if N/A)
Not sure if this approach is correct or if the returned values should be interpreted differently instead of saving the mismatch inside the function.

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[simonstratmann]

I've updated the code and the expectations in the test. To me it looks like the behavior was wrong before but as some of the test code has existed since 2019 I may be misunderstanding the use case.

Please see the first commit that keeps the old expectations mostly intact and the newer commit that updates the tests according to what I would expect to be correct.

[simonstratmann]

I would love for somebody to review this. The bug is preventing me from using hot deploy in a meaningful manner.