[OEMetadata] The Resource Section of the meta information need improvement

[Ludee]

Description of the issue

The resource section with descriptions of the column names needs improvements:

Ideas of solution

Rearrange the keys:

• Name
• Description
• Unit (Only show if available)
• Type
• Nullable (Only show if False)
• Is About (Only show if available)
• Value Reference (Only show if available)

The first three are about the content.
Type and Nullable are technical keys.
Is About and Value Reference are annotations.
Adjust the frontend. e.g. put the annotations to the right into a box.
In general a table view would be suitable for this section.

Workflow checklist

• I am aware of the workflow in CONTRIBUTING.md