Update SMTP configuration and Add Google's Recaptcha V3

[pablodiegoss]

Description

Updated the SMTP configuration variable names while adding new ones for Google's Recaptcha V3. This should filter detected bot usage from the platform.

General tasks performed

• Renamed SMTP Variables
• Added Recaptcha to Signup Page
• Added Recaptcha to Recover password page
• Moved Invoke to a dev dependency

Have you confirmed the application builds locally without error? See here.

• Yes