3 ui updates

ui/winstudentgoaltracker/src/app/desktop/components/toast-host/toast-host.html

@@ -0,0 +1,13 @@
+<div class="toast-stack">
+    @for (t of toast.toasts(); track t.id) {
+    <div class="toast" [class]="'toast--' + t.type">
+        <span class="toast-msg">{{ t.message }}</span>
+        <button class="toast-close" (click)="toast.dismiss(t.id)" aria-label="Dismiss">
+            <svg width="11" height="11" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round">
+                <line x1="18" y1="6" x2="6" y2="18"/>
+                <line x1="6" y1="6" x2="18" y2="18"/>
+            </svg>
+        </button>
+    </div>
+    }
+</div>