style: format HTML for consistency and readability

frontend/src/app/feature/auth/login/login.component.html

@@ -1,13 +1,24 @@
 <div class="min-h-screen bg-deep-blue flex items-center justify-center">
   <div class="modal-card max-w-md w-full bg-deep-blue rounded-lg shadow-xl p-6 relative">
     <!-- Close Button -->
-    <button 
+    <button
       (click)="closeDialog.emit()"
       class="absolute top-4 right-4 text-text-secondary hover:text-white transition-colors"
       aria-label="Dialog schließen"
     >
-      <svg xmlns="http://www.w3.org/2000/svg" class="h-6 w-6" fill="none" viewBox="0 0 24 24" stroke="currentColor">
-        <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M6 18L18 6M6 6l12 12" />
+      <svg
+        xmlns="http://www.w3.org/2000/svg"
+        class="h-6 w-6"
+        fill="none"
+        viewBox="0 0 24 24"
+        stroke="currentColor"
+      >
+        <path
+          stroke-linecap="round"
+          stroke-linejoin="round"
+          stroke-width="2"
+          d="M6 18L18 6M6 6l12 12"
+        />
       </svg>
     </button>