text: Title: Add environment variable to disable ShareGPT
  Body: **Is your feature request related to a problem? Please describe.**
  In its current implementation content is always shared with a 3rd party service (shareGPT). 
  
  **Describe the solution you'd like**
  The ability to define a variable in .env to enable or disable sending any content to shareGPT
  
  **Describe alternatives you've considered**
  None. 
  
  **Additional context**
  Sending all content to shareGPT adds potential risk of information disclosure to a third party, and in its current state there is no simple solution for the bot host to determine whether or not they are ok with that risk.
  