release: Prepare version 1.0.0 for release

- Bump version to 1.0.0
- Enhance package description with feature details
- Add relevant keywords for discoverability
- Update publish configuration for npm registry
- Verify build succeeds with all improvements

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: Zsailer

package.json

@@ -1,11 +1,15 @@
 {
     "name": "jupyterlab-document-collaborators",
-    "version": "0.1.0",
-    "description": "A JupyterLab extension for showing collaborators at the top of a document",
+    "version": "1.0.0",
+    "description": "A JupyterLab extension for showing document collaborators with interactive avatars and cursor labels",
     "keywords": [
         "jupyter",
         "jupyterlab",
-        "jupyterlab-extension"
+        "jupyterlab-extension",
+        "collaboration",
+        "awareness",
+        "yjs",
+        "real-time"
     ],
     "homepage": "https://github.com/jupyter-ai-contrib/jupyterlab-document-collaborators",
     "bugs": {
@@ -95,7 +99,8 @@
     ],
     "styleModule": "style/index.js",
     "publishConfig": {
-        "access": "public"
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
     },
     "jupyterlab": {
         "extension": true,