fix: prettier to warning and trailingComma (#10)

Reviewed-on: #10
Co-authored-by: EndMove <superjeremi1302@gmail.com>
Co-committed-by: EndMove <superjeremi1302@gmail.com>

.eslintrc.json

@@ -110,7 +110,7 @@
     "dot-notation": "warn",
     "quotes": ["error", "single"],
     "prettier/prettier": [
-      "error",
+      "warn",
       {
         "printWidth": 120,
         "tabWidth": 2,
@@ -121,7 +121,8 @@
         "jsxSingleQuote": false,
         "bracketSpacing": true,
         "bracketSameLine": false,
-        "arrowParens": "always"
+        "arrowParens": "always",
+        "trailingComma": "es5"
       }
     ]
   },