Add some local storage to save settings between

page reloads.

WebApp/Components/Features/Students/Edit.razor

@@ -45,7 +45,7 @@ else
                 </MudPaper>
             </MudItem>
         </MudGrid>
-        <MudButton StartIcon="@Icons.Material.Filled.ArrowBack" Href="students">Back</MudButton>
+        <MudButton StartIcon="@Icons.Material.Filled.ArrowBack" Href="@(ReturnUrl ?? "/students")">Back</MudButton>
         <MudButton StartIcon="@Icons.Material.Filled.Save"  OnClick="UpdateStudent">Save</MudButton>
     </EditForm>
 }
@@ -54,6 +54,9 @@ else
     [SupplyParameterFromQuery]
     private int Id { get; set; }
 
+    [SupplyParameterFromQuery]
+    private string? ReturnUrl { get; set; }
+
     [SupplyParameterFromForm]
     private Student? Student { get; set; }
 
@@ -92,7 +95,7 @@ else
             }
         }
 
-        NavigationManager.NavigateTo("/students");
+        NavigationManager.NavigateTo(ReturnUrl ?? "/students");
     }
 
     private bool StudentExists(int id)