[Feature Request] Make users able to delete their account

[Saterz]

Is your feature request related to a problem? Please describe.
Right now the only way for users to delete their account is to send a message to the support email, this isn't a good user experience.

Describe the solution you'd like
Add in the settings a button which will instantly delete their CubeIndex account and any related data

Describe alternatives you've considered
None

Additional context
None