Added logic to handle bot being unable to change a nickname due to role hierarchy.

cogs/commands/request.py

@@ -62,9 +62,20 @@ class UsernameRequest(nextcord.ui.View):
     async def approve(self, button: nextcord.ui.Button, interaction: nextcord.Interaction):
         user = interaction.guild.get_member(self.user_id)
         if user is not None:
+            try:
                 await user.edit(nick=self.new_nickname)
-            content = interaction.message.content + f" Approved by <@{interaction.user.id}>."
+                content = interaction.message.content + f"\nApproved by <@{interaction.user.id}>."
                 await interaction.response.edit_message(content=content, view=None)
+            except nextcord.errors.Forbidden:
+                await interaction.response.send_message(
+                    content="Please change manually.",
+                    ephemeral=True,
+                )
+                content = (
+                    interaction.message.content
+                    + "\n\nFailed. User has too high permissions for bot to change nickname."
+                )
+                await interaction.followup.edit_message(interaction.message.id, content=content, view=None)
         else:
             await interaction.response.edit_message(
                 content="An error occured while changing the user's nickname.", view=None
@@ -72,5 +83,5 @@ class UsernameRequest(nextcord.ui.View):
 
     @nextcord.ui.button(label="Deny", style=nextcord.ButtonStyle.red)
     async def deny(self, button: nextcord.ui.Button, interaction: nextcord.Interaction):
-        content = interaction.message.content + f" Denied by <@{interaction.user.id}.>"
+        content = interaction.message.content + f"\nDenied by <@{interaction.user.id}.>"
         await interaction.response.edit_message(content=content, view=None)