Draft: Resolve "Schnellansicht im Overview"

Related issues

Acceptance criteria

• Implemented code changes don't diverge from the related issue.
• Documentation reflects the status quo after merge.
• Version number is incremented according to SemVer. (Snapshot versions are not merged/released.)
• Only released versions of dependencies are used (i.e. no snapshot versions).
• Pipeline still works.
• GitLab issue is up-to-date.

If necessary, the following sections have been updated:

• Swagger
• Readme.md
• Documentation

Proposed squash commit message

Add an on-click details view

eCMR items can now be clicked to open a details view.
instead of only showing the table information, the details view 
contains all information of the selected eCMR in a structured overview.

Closes #4 (closed)