Added role management functionality to the user details page

Template/TemplateWeb/Areas/Admin/Views/Users/Details.cshtml

@@ -7,7 +7,12 @@
     <a asp-action="Index" class="btn btn-secondary">&larr; Back to List</a>
 </div>
 
-<div class="card">
+@if (TempData["SuccessMessage"] != null)
+{
+    <div class="alert alert-success">@TempData["SuccessMessage"]</div>
+}
+
+<div class="card mb-4">
     <div class="card-header bg-primary text-white">
         <h3 class="card-title mb-0">User Information: @Model.UserEntity.UserName</h3>
     </div>
@@ -32,3 +37,26 @@
         </dl>
     </div>
 </div>
+
+<div class="card">
+    <div class="card-header">
+        <h5 class="mb-0">Edit Roles</h5>
+    </div>
+    <div class="card-body">
+        <form asp-action="UpdateRoles" asp-route-id="@Model.UserEntity.Id" method="post">
+            @Html.AntiForgeryToken()
+            <div class="d-flex gap-4 flex-wrap mb-3">
+                @foreach (var role in Model.AllRoles)
+                {
+                    <div class="form-check">
+                        <input class="form-check-input" type="checkbox"
+                               name="selectedRoles" value="@role" id="role_@role"
+                               @(Model.Roles.Contains(role) ? "checked" : "") />
+                        <label class="form-check-label" for="role_@role">@role</label>
+                    </div>
+                }
+            </div>
+            <button type="submit" class="btn btn-primary">Save Roles</button>
+        </form>
+    </div>
+</div>