Remove extraneous spaces in package.json

package.json

   },
   "scripts": {
     "build": "tsc",
-    "prepare" : "npm run build",
-    "postversion" : "git push && git push --tags"
+    "prepare": "npm run build",
+    "postversion": "git push && git push --tags"
   },
   "keywords": [],
   "author": "Dylan Baker <dylan@simulacrum.party>",