chore: use correct repository syntax

Author: danielroe

package.json

@@ -2,7 +2,10 @@
   "name": "@nuxt/image",
   "version": "1.0.0",
   "description": "Nuxt Image Module",
-  "repository": "nuxt/image",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/nuxt/image.git"
+  },
   "homepage": "https://image.nuxt.com",
   "license": "MIT",
   "sideEffects": false,