restructured components so that there are more components in the pages

Management.Web/Pages/AssignmentForm/RubricDisplay.razor

@@ -0,0 +1,61 @@
+@using Management.Web.Shared.Components
+
+@inject CoursePlanner planner
+@inject AssignmentEditorContext assignmentContext
+
+@code
+{
+  private string? error { get; set; } = null;
+
+  protected override void OnInitialized()
+  {
+    assignmentContext.StateHasChanged += reload;
+    reload();
+  }
+  private void reload()
+  {
+    this.InvokeAsync(this.StateHasChanged);
+  }
+
+  public void Dispose()
+  {
+    assignmentContext.StateHasChanged -= reload;
+  }
+
+  private int requiredPoints => assignmentContext?.Assignment?.Rubric.Where(r => !r.IsExtraCredit).Select(r => r.Points).Sum() ?? 0;
+  private int extraCreditPoints => assignmentContext?.Assignment?.Rubric.Where(r => r.IsExtraCredit).Select(r => r.Points).Sum() ?? 0;
+}
+
+@if(assignmentContext != null)
+{
+  <div class="row">
+    <h4 class="text-center">Rubric</h4>
+  </div>
+
+  @if (error != null)
+  {
+    <p class="text-danger text-truncate">Error: @error</p>
+  }
+
+  <div class="row border-bottom">
+    <div class="col-6 text-end">Label</div>
+    <div class="col-3 text-center">Points</div>
+    <div class="col-3 text-center">Extra Credit</div>
+  </div>
+  @foreach (var item in assignmentContext?.Assignment?.Rubric ?? [])
+  {
+    <div class="row border-bottom">
+      <div class="col-6 text-end">@item.Label</div>
+      <div class="col-3 text-center">@item.Points</div>
+      <div class="col-3 text-center">@item.IsExtraCredit</div>
+    </div>
+  }
+  <div class="text-end">
+    <div>
+      Required Points: @requiredPoints
+    </div>
+    <div>
+      Extra Credit Points @extraCreditPoints
+    </div>
+  </div>
+}