fix: Update .prettierrc.json to disable Prettier

Replace existing rules in `.prettierrc.json` with `requirePragma` rule
to disable Prettier in lieu of vscode not supporting `.prettierignore`
files in project subdirectories of a multiroot workspace.

.prettierrc.json

@@ -1,11 +1,3 @@
 {
-  "singleQuote": false,
-  "overrides": [
-    {
-      "files": ["src/js/**"],
-      "options": {
-        "singleQuote": true
-      }
-    }
-  ]
+  "requirePragma": true
 }