Added geminfo_app.yaml to the ICS YAML folder to support Thannhausen …

[AveCaesarAve]

Adding Thannhausen in Austria.

Summary

Adding city of thannhausen in Austria via Geminfo.app interface to generate the ICS with thrash collection calendar.

Type of change

• [ x] New source
• Bug fix / source fix
• Documentation update
• Other

Checklist

• [x ] python -m pytest tests/test_source_components.py -q passes
• [x ] ruff check --fix and ruff format run on changed source files
• [ x] No generated files in diff (README.md, info.md, sources.json, translations/*.json — CI regenerates these post-merge)
• [ x] doc/source/<name>.md created for new sources
• [ x] TEST_CASES use real, publicly accessible addresses (not my own)

[Copilot]

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

[bbr111]

please remove settings.json from PR

fix validation erros