Add Confirmation if User wanted to remove, unlink, or changing language

[nattadasu]

Similar to how /register, /* search, and /serversettings register, warns user if they really wanted to delete their data, unlink a platform, or changing to (unfamiliar) language.

Implementation example:

async def unregister(ctx):
  # ...
  await ctx.send(embed=embed,
                 components=interactions.Button(label="Confirm",
                                                style=interactions.ButtonColor.DANGER,
                                                custom_id="user_confirm_action"))

@interactions.ComponentListener("user_confirm_action")
async def user_confirms(ctx):
  # rest of logic