Fix tests

[henninggaertner]

Description

Fixes a bunch of tests and improves some form descriptions in the frontend

Testing

Run tests

PR checklist

Development

• [x] If necessary, I have updated the documentation (README, docstrings, etc.)
• [x] If necessary, I have created / updated tests.

Mergeability

• [x] main-branch has been merged into local branch to resolve conflicts
• [x] The tests and linter have passed AFTER local merge
• [x] The code has been formatted with black

Code review

• [x] I have self-reviewed my code.
• [ ] At least one other developer reviewed and approved the changes

[github-actions[bot]]

Coverage report

Click to see where and how coverage changed

File	Statements	Missing	Coverage	Coverage (new stmts)	Lines missing
protzilla
run.py
runner.py					127-128
steps.py					83, 101
protzilla/data_analysis
ptm_analysis.py
protzilla/data_preprocessing
filter_proteins.py
outlier_detection.py
peptide_filter.py
transformation.py
protzilla/importing
metadata_import.py					150
peptide_import.py
protzilla/methods
data_analysis.py					631-641
data_preprocessing.py
importing.py					142
ui/runs/forms
data_analysis.py					926-934, 962
Project Total

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