fix(welcome): Log specific ValueError message

Include the specific error details from ValueError when logging issues in the
welcome message process, making debugging easier.

cogs/welcome_cog.py

@@ -181,9 +181,9 @@ class WelcomeCog(commands.Cog):
             await channel.send(view=view)
             log.info(f"Sent welcome message for {member.name} in guild {guild.id}")
 
-        except ValueError:
+        except ValueError as e:
             log.error(
-                f"Invalid welcome_channel_id '{welcome_channel_id_str}' configured for guild {guild.id}"
+                f"ValueError in WelcomeCog for guild {guild.id}: {e}"
             )
         except discord.Forbidden:
             log.error(