fix: replace Tailwind CDN with local CSS in docs templates

- Remove Tailwind CDN dependency from documentation pages
- Load local /static/style.css instead (includes typography plugin)
- Remove inline tailwind.config script (no longer needed)
- Code blocks now use proper dark colors from input.css overrides
- Consistent with other templates (admin, dashboard, analytics)
- Faster loading (no external CDN request)
- Local build includes all needed CSS (typography + custom overrides)
- Add Zed editor configuration for CSS at-rule warnings

.zed/settings.json

@@ -1,8 +1,9 @@
 {
   "languages": {
     "CSS": {
+      "language_servers": ["tailwindcss-language-server"],
       "tab_size": 2,
-      "formatter": "auto"
-    }
-  }
+      "formatter": "auto",
+    },
+  },
 }