Minor cleanup pass.

- Run prettier over all HTML.
- Combine jquery and jquery-migrate scripts
- Remove unused WP emoji code.
- Remove unused WP comment script.
- Remove unused WP embed script.
- Add Umami analytics (self-hosted, privacy friendly analytics)

.gitea/workflows/netlify-deploy.yaml

@@ -16,6 +16,7 @@ jobs:
         name: Deploying to Netlify..
         with:
           publish-dir: './static'
+          production-branch: 'main'
           production-deploy: true
           github-token: ${{ secrets.GITHUB_TOKEN }}
           deploy-message: "Deployed from Gitea Action"