feat(metadata): Display keywords and remarks

[tuckerzp]

This adds the OSCALMetadataKeywords & OSCALMetadataRemarks
components.

closes #707
closes #710

Testing

• http://localhost:3000/catalog/
• http://localhost:3000/catalog/?url=https://raw.githubusercontent.com/EasyDynamics/oscal-demo-content/test-content/catalogs/basic-test-catalog.json

[kylelaker]

Please also have tests for:

{"props": []}

Displays nothing

{
  "props": [
    {
      "name": "keywords",
      "value": "",
    }
  ]
}

Displays nothing

{
  "props": [
    {
      "name": "keywords",
      "value": "Keyword_1",
    }
  ]
}

Displays 1 keyword

{
  "props": [
    {
      "name": "keywords",
      "value": "Keyword_1",
      "ns": "https://test.easydynamics.com/ns/oscal"
    }
  ]
}

Displays nothing

[kylelaker]

This is terrific for initial viewing functionality. Thanks, @tuckerzp!

[Bronstrom]

Implementation reads nicely, tests and stories are great, and overall the content displays cleanly!