Create remove_user command.

cogs/commands/views/update_username_verify.py

@@ -54,6 +54,8 @@ class UpdateUsernameVerifyView(nextcord.ui.View):
         content += f"\nApproved by <@{interaction.user.id}>."
         await interaction.edit(content=content, view=None)
 
+        user_was_found: bool = False
+
         # update username in all tables and categories
         for table in guild.tables:
             table_updated: bool = False
@@ -64,10 +66,17 @@ class UpdateUsernameVerifyView(nextcord.ui.View):
                     score.user = new_username
                     category.add_score(score)
                     table_updated = True
+                    user_was_found = True
 
             if table_updated:
                 await send_highscore_message(
                     interaction.guild.get_channel(guild.highscore_channel), guild, table
                 )
 
-        highscores_data.save_guild_data(guild)
+        if not user_was_found:
+            await interaction.send(
+                f'User "{old_username}" was not found. Inform user to correct username.',
+                ephemeral=True,
+            )
+        else:
+            highscores_data.save_guild_data(guild)