feat: Support dark mode in login pages (#7420)

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/v3/views/auth/confirmation/Index.vue

@@ -0,0 +1,36 @@
+<template>
+  <div class="flex items-center justify-center h-full w-full">
+    <spinner color-scheme="primary" size="" />
+    <div class="ml-2">{{ $t('CONFIRM_EMAIL') }}</div>
+  </div>
+</template>
+<script>
+import { DEFAULT_REDIRECT_URL } from 'dashboard/constants/globals';
+import { verifyPasswordToken } from '../../../api/auth';
+import Spinner from 'shared/components/Spinner';
+
+export default {
+  components: { Spinner },
+  props: {
+    confirmationToken: {
+      type: String,
+      default: '',
+    },
+  },
+  mounted() {
+    this.confirmToken();
+  },
+  methods: {
+    async confirmToken() {
+      try {
+        await verifyPasswordToken({
+          confirmationToken: this.confirmationToken,
+        });
+        window.location = DEFAULT_REDIRECT_URL;
+      } catch (error) {
+        window.location = DEFAULT_REDIRECT_URL;
+      }
+    },
+  },
+};
+</script>