Improve repo tooling (#398)

* add basic git files to root

* make server part of monorepo

* import promo

* import libraries base

* import docs

* import desktop

* move docs and promo

sites/docs/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "docs-next",
+  "type": "module",
+  "version": "0.0.1",
+  "scripts": {
+    "dev": "astro dev",
+    "start": "astro dev",
+    "build": "astro build",
+    "preview": "astro preview",
+    "astro": "astro"
+  },
+  "dependencies": {
+    "@astrojs/starlight": "^0.37.4",
+    "astro": "^5.6.1",
+    "sharp": "^0.34.2",
+    "starlight-image-zoom": "^0.13.2",
+    "starlight-links-validator": "^0.19.2",
+    "starlight-theme-rapide": "^0.5.2"
+  }
+}