Clear confirmation message content on delete result

Prevents double emoji display by clearing the "✅ Confirmed!" content
when showing the delete result embed.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

VERSION

@@ -1 +1 @@
-2.28.2
+2.28.3

views/custom_commands.py

@@ -607,14 +607,14 @@ class SingleCommandManagementView(BaseView):
                     title="Delete Failed",
                     description=f"Failed to delete command: {e}"
                 )
-            await interaction.edit_original_response(embed=embed, view=None)
+            await interaction.edit_original_response(content=None, embed=embed, view=None)
         else:
             # User cancelled
             embed = EmbedTemplate.info(
                 title="Deletion Cancelled",
                 description=f"The command `/cc {self.command.name}` was not deleted."
             )
-            await interaction.edit_original_response(embed=embed, view=None)
+            await interaction.edit_original_response(content=None, embed=embed, view=None)
 
 
 class CustomCommandListView(PaginationView):