fix: content type matching

[boecklim]

Description of Changes

• Less strict matching of content-type => fix [BUG] Overly strict contentType parsing #839
• Remove redundant "height" from log
• Join error when net.Listen fails

Testing Procedure

• I have added new unit tests
• All tests pass locally
• I have tested manually in my local environment

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have updated CHANGELOG.md with my changes

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
100.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud