Metadata issues

[matthewelwell]

1. This Tooltip doesn't make any sense to me. I don't think it's necessary as we have the description and link to the docs below.

2. I'm not sure what these null values are. Maybe this is old data.

The JSON responses are as follows:

// GET /metadata/fields/

        {
            "id": 1,
            "name": "JIRA Ticket Number",
            "type": "str",
            "description": "",
            "organisation": 18
        }

// GET organisations/:id/metadata-model-fields/
        {
            "id": 1,
            "field": 1,
            "content_type": 39,
            "is_required_for": []
        },
        {
            "id": 2,
            "field": 1,
            "content_type": 55,
            "is_required_for": []
        }

3. Requeried -> Required

4. Be more descriptive in locations where metadata should be shown, guiding users to where they can configure the metadata.