nickname fixes

app.py

@@ -182,14 +182,19 @@ async def on_voice_state_update(member, before, after):
 
 @bot.event
 async def on_member_update(before, after):
-    if before.nick != after.nick:
-        # Nickname changes
+    if before.nick is None and after.nick is not None:
+        # User creates a nickname
+        embed = Embed(description=f'{before} created the nickname {after.nick}', color=Color.blue())
+        await bot.log_channel.send(embed=embed)
+    elif before.nick is not None and after.nick is None:
+        # User removes their nickname
+        embed = Embed(description=f'{before} removed their nickname', color=Color.blue())
+        await bot.log_channel.send(embed=embed)
+    elif before.nick != after.nick:
+        # User changes their nickname
         embed = Embed(description=f'{before} changed their nickname to {after.nick}', color=Color.blue())
         await bot.log_channel.send(embed=embed)
-    if before.nick == None
-        if after.nick != None
-            embed = Embed(description=f'{before} changed their nickname to {after.nick}', color=Color.blue())
-            await bot.log_channel.send(embed=embed)
+
 @bot.event
 async def on_guild_channel_create(channel):
     # Channel creations