[Feature Request] Button for randomizing Paste password

[AbstractUmbra]

Whilst a password is optional, having a small button on/near the password field to insert a random password would be pretty neat. It would mean we might need to display the password, maybe stored in the security token for the end user (since that token has god powers in essence)?

[EvieePy]

This could technically be done with the way sessions are setup (unless someone has disabled cookies).