Shrink avatar, drop availability signal, slim deploy deps

Make the portrait smaller (200px) and tighten the hero columns. Remove
the "Open to new work" status and neutralise the contact copy so nothing
reads as job-seeking; show a plain location in the top bar instead.

Deploy/tooling: drop the unneeded `--force` from the install (verified a
clean --legacy-peer-deps install + gatsby build both pass). Replace
gatsby-plugin-offline with gatsby-plugin-remove-serviceworker to retire
the service worker (fixes stale-cache-after-deploy and removes the
workbox deprecation).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

package.json

@@ -6,8 +6,8 @@
   "dependencies": {
     "gatsby": "^5.12.12",
     "gatsby-plugin-manifest": "^5.12.3",
-    "gatsby-plugin-offline": "^6.12.3",
     "gatsby-plugin-react-helmet": "^6.12.0",
+    "gatsby-plugin-remove-serviceworker": "^1.0.0",
     "react": "^18.2.0",
     "react-dom": "^18.2.0",
     "react-helmet": "^6.1.0",