build: update git repository url (#593)

Author: setchy

package.json

@@ -16,7 +16,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/manosim/gitify.git"
+    "url": "https://github.com/gitify-app/gitify.git"
   },
   "keywords": [
     "gitify",