Add some local storage to save settings between

page reloads.

WebApp/Components/Features/Students/Details.razor

@@ -64,8 +64,8 @@ else
     </MudPaper>
 
     <div class="mt-4">
-        <MudButton StartIcon="@Icons.Material.Filled.Edit" Href="@($"/students/edit?id={student.Id}")" Variant="Variant.Filled" Color="Color.Primary">Edit</MudButton>
-        <MudButton StartIcon="@Icons.Material.Filled.ArrowBack" Href="/students" Variant="Variant.Text">Back to List</MudButton>
+        <MudButton StartIcon="@Icons.Material.Filled.Edit" Href="@($"/students/edit?id={student.Id}&returnUrl={ReturnUrl ?? "/students"}")" Variant="Variant.Filled" Color="Color.Primary">Edit</MudButton>
+        <MudButton StartIcon="@Icons.Material.Filled.ArrowBack" Href="@(ReturnUrl ?? "/students")" Variant="Variant.Text">Back to List</MudButton>
     </div>
 }
 
@@ -75,6 +75,9 @@ else
     [SupplyParameterFromQuery]
     private int Id { get; set; }
 
+    [SupplyParameterFromQuery]
+    private string? ReturnUrl { get; set; }
+
     protected override async Task OnInitializedAsync()
     {
         student = await context.Students.FirstOrDefaultAsync(m => m.Id == Id);