chore: Add Prettier config

Author: chrisjm

.prettierrc

@@ -1 +1,14 @@
-{}
+{
+  "trailingComma": "es5",
+  "tabWidth": 2,
+  "semi": true,
+  "singleQuote": true,
+  "overrides": [
+    {
+      "files": ["*.svx"],
+      "options": {
+        "parser": "mdx"
+      }
+    }
+  ]
+}