[BUGFIX] Parsing timecode in TableOfContent Chapter-Links for A/V Media Files

[fschoelzel]

• accept new uuid format in RegEx for fileIds
• add possibility to parse Milliseconds in timecode like: 123.456 total seconds

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (09acd45) to head (5da18f5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #1673   +/-   ##
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