Remove unused css

Fixed background of loading bar

Bump System.ServiceModel.Syndication from 7.0.0-rc.2.22472.3 to 7.0.0

Bumps [System.ServiceModel.Syndication](https://github.com/dotnet/runtime) from 7.0.0-rc.2.22472.3 to 7.0.0.
- [Release notes](https://github.com/dotnet/runtime/releases)
- [Commits](https://github.com/dotnet/runtime/commits)

---
updated-dependencies:
- dependency-name: System.ServiceModel.Syndication
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Use DbContextFactory (fixes #45)

Fix test

Version bump

Fixed malformed css file

Footer always at the bottom of the page

Update packages and version bump

Update SonarAnalyzers