Notification  if miner disconect.
Hey  have some miners asking if we culd add notification  that send them email if miner that mines to their acc disconect.

And was thinking  this isnt stupid many pools have this and there is a good develuped  admin notification  here already  so belive this maybe isnt so hard to add.

Adding a picture howe other pools do this. 
![Screenshot_20220808-175559_Chrome](https://user-images.githubusercontent.com/44748488/183461753-619bc9f3-49da-4de8-a2fb-b49f09d65e5c.jpg)
