Add sorting functionality for prospects with new ProspectSortControl component

FoodsharingSiegen.Server/Controls/ProspectSortControl.razor

@@ -0,0 +1,17 @@
+@using FoodsharingSiegen.Contracts.Enums
+
+<Button Color="Color.Primary"
+        Width="Width.Px(50)"
+        Height="Height.Px(50)"
+        title="Sortieren"
+        style="min-width: auto;"
+        Clicked="@OpenSortDialogAsync">
+    <i class="fa-solid fa-sort"></i>
+</Button>
+
+<div class="badge-row mt-2">
+    @if (HasCustomSort)
+    {
+        <Badge Color="Color.Primary" Closable="true" CloseClicked="@EventCallback.Factory.Create(this, ResetSortAsync)">@CurrentSortText</Badge>
+    }
+</div>