Improved performance for regex highlighting

[KonnorRogers]

• Add ninja-action__highlight part
• Improve performance for regex highlighting
• Export types top level
• Added additional styling for content fields

[github-actions[bot]]

A preview of 85776935dc889d0e6359c55854d1f92dda1aa7a9 is uploaded and can be seen here:

✨ https://KonnorRogers.github.io/konnors-ninja-keys/pull/16 ✨

Changes may take a few minutes to propagate. Since this is a preview of production, content with draft: true will not be rendered. The source is here: https://github.com/KonnorRogers/konnors-ninja-keys/tree/gh-pages/pull/16/