Improve parser error messages

[SebastianSchmidl]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 87.17949% with 5 lines in your changes missing coverage. Please review.

Project coverage is 89.74%. Comparing base (1d7a9a5) to head (dea96c5).

Files with missing lines	Patch %	Lines
gutenTAG/config/parser.py	87.17%	5 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #62      +/-   ##
==========================================
- Coverage   90.00%   89.74%   -0.26%     
==========================================
  Files          53       53              
  Lines        2091     2078      -13     
==========================================
- Hits         1882     1865      -17     
- Misses        209      213       +4     

Flag	Coverage Δ
unittests	89.74% <87.17%> (-0.26%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.