Refactor to Vue 3 recommended ESLint rules

These updates ensure better adherence to Vue 3 standards and improve
overall code quality and readability.

- Update ESLint configuration from Vue 2.x to Vue 3 rules.
- Switch from "essential" to strictest "recommended" ESLint ruleset.
- Adjust ESLint script to treat warnings as errors by using
  `--max-warnings=0` flag. This enforces stricter code quality controls
  provided by Vue 3 rules.

src/presentation/components/DevToolkit/DevToolkit.vue

@@ -6,9 +6,10 @@
     <hr />
     <button
       v-for="action in devActions"
-      @click="action.handler"
       :key="action.name"
-      type="button">
+      type="button"
+      @click="action.handler"
+    >
       {{ action.name }}
     </button>
   </div>