added the prettier configuration to format the project

Author: Inventor77

Diff for: .prettierrc

@@ -0,0 +1,9 @@
+{
+  "arrowParens": "always",
+  "bracketSpacing": true,
+  "useTabs": false,
+  "tabWidth": 2,
+  "singleQuote": false,
+  "semi": true,
+  "trailingComma": "es5"
+}