fix(head.html): Adds robustness to `config.yaml` favicon definitions

Geoffrey Garrett

2022-06-27 b732293f65999e9a1d3a40a5ddeccf53a385b1f3

 .prettierrc

@@ -2,5 +2,6 @@
  "printWidth": 100,
  "quoteProps": "as-needed",
  "trailingComma": "all",
  "tabWidth": 2
  "tabWidth": 2,
  "semi": false
}