Added registry entry

apps/registry.json

@@ -1,4 +1,27 @@
 [
+    {
+        "id": "urbit",
+        "category": "Social",
+        "name": "Urbit",
+        "version": "0.1.0",
+        "tagline": "Run Urbit on your Umbrel",
+        "description": "Urbit is a personal server for self-sovereign personal & networked computing. Nock, a functional combinator, is built into Hoon, a system programming language, used to implement Arvo, a deterministic operating system, that communicates over Ames, a decentralized, encrypted P2P network.\n\nThis app helps you boot and manage Urbit instances on your Umbrel. It provides a simple management GUI, start and stop operations, and passes your +code through the interface.\n\nCredit to ~timluc-miptev, ~master-forwex, ~sipsen-pilser & ~rivpyl-sidfyl",
+        "developer": "~mopfel-winrux & ~sitful-hatred",
+        "website": "https://github.com/mopfel-winrux/urbit-umbrel",
+        "dependencies": [],
+        "repo": "https://github.com/mopfel-winrux/urbit-umbrel",
+        "support": "https://github.com/mopfel-winrux/urbit-umbrel/issues",
+        "port": 8090,
+        "gallery": [
+            "1.jpg",
+            "2.jpg",
+            "3.jpg"
+        ],
+        "path": "/launch",
+        "defaultUsername": "umbrel",
+        "deterministicPassword": true,
+        "torOnly": false
+    },
     {
       "id": "nextcloud",
       "category": "Files",