allow enter key to submit add to collection dialog (#167)

ErsatzTV/Shared/AddToCollectionDialog.razor

@@ -7,6 +7,7 @@
 @inject ISnackbar Snackbar
 @inject ILogger<AddToCollectionDialog> Logger
 
+<div @onkeydown="@OnKeyDown">
     <MudDialog>
         <DialogContent>
                 <MudContainer Class="mb-6">
@@ -35,6 +36,8 @@
             </MudButton>
         </DialogActions>
     </MudDialog>
+</div>
+
 
 @code {
 
@@ -109,4 +112,12 @@
 
     private void Cancel() => MudDialog.Cancel();
 
+    private async Task OnKeyDown(KeyboardEventArgs e)
+    {
+        if (e.Code is "Enter" or "NumpadEnter" && CanSubmit())
+        {
+            await Submit();
+        }
+    }
+
 }