* Add restart command
This is handy when you need to restart the bot when something goes wrong.
Currently, the bot restarts but doesn't send a message after restarting
is done, feel free to improve this. It'll need something like storing
bot status locally then on bot start, if restart status exists send
a message.
Signed-off-by: yshalsager <ysh-alsager@hotmail.com>
* restart: switch to context based callbacks
* restart: restrict the command to owner only
Co-authored-by: Shivam Jha <jhashivam2020@gmail.com>