feat: add file loader

[ankeko]

📥 Pull Request Description

Add file loader to load other files than images and dataframes.
Fix load experiments by using Location config instead of dict.

👀 Affected Areas

Experiment loading.
New Option for dashboard

📝 Checklist

Please make sure you've completed the following tasks before submitting this pull request:

• Pre-commit hooks were executed
• Changes have been reviewed by at least one other developer
• Tests have been added or updated to cover the changes (only necessary if the changes affect the executable code)
• All tests ran successfully
• All merge conflicts are resolved
• Documentation has been updated to reflect the changes
• Any necessary migrations have been run