Add client linting to GitHub Actions workflow

Enhance CI/CD pipeline by introducing a new job to run ESLint on the client application. This ensures code quality and consistency for the frontend codebase.

client/pages/oauth/callback.vue

@@ -1,38 +1,36 @@
 <template>
-  <template>
-    <div class="flex flex-grow mt-6 mb-10">
-      <div class="w-full md:w-2/3 md:mx-auto md:max-w-md px-4">
-        <div
-          v-if="loading"
-          class="m-10"
+  <div class="flex flex-grow mt-6 mb-10">
+    <div class="w-full md:w-2/3 md:mx-auto md:max-w-md px-4">
+      <div
+        v-if="loading"
+        class="m-10"
+      >
+        <h3 class="my-6 text-center">
+          Please wait...
+        </h3>
+        <Loader class="h-6 w-6 mx-auto m-10" />
+      </div>
+      <div
+        v-else
+        class="m-6 flex flex-col items-center space-y-4"
+      >
+        <p class="text-center">
+          Unable to sign it at the moment.
+        </p>
+        <v-button
+          :to="{ name: 'login' }"
         >
-          <h3 class="my-6 text-center">
-            Please wait...
-          </h3>
-          <Loader class="h-6 w-6 mx-auto m-10" />
-        </div>
-        <div
-          v-else
-          class="m-6 flex flex-col items-center space-y-4"
-        >
-          <p class="text-center">
-            Unable to sign it at the moment.
-          </p>
-          <v-button
-            :to="{ name: 'login' }"
-          >
-            Back to login
-          </v-button>
-        </div>
+          Back to login
+        </v-button>
       </div>
     </div>
-  </template>
+  </div>
 </template>
 
 <script setup>
-import { useNuxtApp } from "nuxt/app";
+import { useNuxtApp } from "nuxt/app"
 
-const { $utm } = useNuxtApp();
+const { $utm } = useNuxtApp()
 
 const router = useRouter()
 const route = useRoute()