add possibility of deleting a bm with a button

bot/exts/utilities/bookmark.py

@@ -24,12 +24,29 @@
 
 
 class LinkTargetMessage(discord.ui.View):
-    """The button that relays the user to the bookmarked message."""
+    """
+    The button that relays the user to the bookmarked message.
+
+    Attributes
+    __________
+    dm_message: discord.Message
+        The message that will be sent to the bookmark's requester DMs
+
+    """
+
+    dm_message: discord.Message | None
 
     def __init__(self, target_message: discord.Message):
         super().__init__()
+        self.dm_message = None
         self.add_item(discord.ui.Button(label="View Message", url=target_message.jump_url))
 
+    @discord.ui.button(label="Delete bookmark", style=discord.ButtonStyle.red)
+    async def button_callback(self, interaction: discord.Interaction, button: discord.Button) -> None:
+        """The button callback."""
+        if self.dm_message:
+            await self.dm_message.delete()
+
 
 class SendBookmark(discord.ui.View):
     """The button that sends the bookmark to other users."""
@@ -110,7 +127,9 @@ async def action_bookmark(
         """
         embed = self.build_bookmark_dm(target_message, title)
         try:
-            await member.send(embed=embed, view=LinkTargetMessage(target_message))
+            view = LinkTargetMessage(target_message)
+            dm_message = await member.send(embed=embed, view=view)
+            view.dm_message = dm_message
         except discord.Forbidden:
             error_embed = self.build_error_embed(f"{member.mention}, please enable your DMs to receive the bookmark.")
             await channel.send(embed=error_embed)