Add dependency to badge registry entry

Added @radix-ui/react-slot as a dependency for the badge component in the registry. This ensures proper functionality and resolves potential missing dependency issues.

- Updated the "badge" registry entry by including "@radix-ui/react-slot" in its dependencies list.
- Fixed the missing newline at the end of the file for better formatting.

apps/v4/registry.json

@@ -121,6 +121,9 @@
     {
       "name": "badge",
       "type": "registry:ui",
+      "dependencies": [
+        "@radix-ui/react-slot"
+      ],
       "files": [
         {
           "path": "registry/new-york-v4/ui/badge.tsx",
@@ -2751,4 +2754,4 @@
       ]
     }
   ]
-}
+}