Update z-index values in DialogWidget and OverviewView components to improve layout stacking context and ensure proper element visibility.

frontend/src/components/DialogWidget.vue

@@ -185,7 +185,7 @@ export default {
   display: flex;
   align-items: center;
   justify-content: center;
-  z-index: 100;
+  z-index: 1000;
   background: rgba(0, 0, 0, 0.5);
 }
 
@@ -272,6 +272,6 @@ dialog-footer {
 }
 
 .is-active {
-  z-index: 990;
+  z-index: 1100;
 }
 </style>

frontend/src/views/falukant/OverviewView.vue

@@ -404,6 +404,8 @@ export default {
     justify-content: center;
     align-items: center;
     gap: 20px;
+    position: relative;
+    z-index: 0;
 }
 
 .avatar {