Improve Element Card regarding redundant Information and Styling

[phildree]

User story

1. As a User
2. I want a clean and concise element card
3. So that I can read it easily

Acceptance criteria

• When information is long they can be display very close to each other (inside of a card) => increase space between columns
• Remove duplicated information (shared in preview and details) for example: Number of Namespaces 3 & Amount of Namespaces 3 in the tenant view
• adjust backend accordingly (when the frontend is finished)

Definition of done (DoD)

• Feature is done when the acceptance criteria are fullfiled
• Feature is done when there are test where it is necessary and they pass
• Feature is done when the linter passes
• Feature is done when it is merged onto our main branch (after the code has been reviewed by at least one other person)
• Feature is done when the code has been documentend or commented properly

DoD general criteria

• Feature has been fully implemented
• Feature has been merged into the mainline
• All acceptance criteria were met
• Product owner approved features
• All tests are passing
• Developers agreed to release