added svg for comact mode

frontend/src/app/layout/main-layout/layout.component.html

@@ -31,14 +31,16 @@
         <button (click)="toggleCompactMode()" class="btn btn-square btn-ghost">
           <svg
             xmlns="http://www.w3.org/2000/svg"
-            fill="none"
             viewBox="0 0 24 24"
-            class="inline-block w-6 h-6 stroke-current">
-            <path
+            fill="none"
+            stroke="currentColor"
+            stroke-width="2"
             stroke-linecap="round"
             stroke-linejoin="round"
-              stroke-width="2"
-              d="M3 3h18v18H3V3z"></path>
+            class="inline-block w-6 h-6">
+            <rect x="3" y="3" width="18" height="18" rx="2" ry="2" />
+            <line x1="9" y1="3" x2="9" y2="21" />
+            <path d="M13 8l3 3-3 3" />
           </svg>
         </button>
       </div>