Make package.json more complete and fix deps

Author: chalin

package.json

@@ -10,6 +10,10 @@
     "build": "npm run _docs build",
     "serve": "npm run _docs serve"
   },
+  "dependencies": {
+    "@fortawesome/fontawesome-free": "^5.15.4",
+    "bootstrap": "^4.6.1"
+  },
   "devDependencies": {
     "hugo-extended": "0.92.2"
   }