fix: onboarding redirection loop and bug fixes

[anmolsinghbhatia]

Problem:

• Experiencing a redirection loop problem while signing up with a new email. To replicate:
  • Sign up using a new email address.
  • Enter a unique code as prompted.
  • Proceed to the "Set Up Workspace" feature.
• The copy issue link is malfunctioning.
• Inconsistent use of "next_url" and "next_path" in various locations.
• Lack of validation for the "next_path" URL poses a significant security vulnerability.

Resolution:

• Removed unnecessary hooks from the onboarding page, potentially eliminating the infinite loop & Implemented a try-catch block in the 'handleSignInRedirection' function for additional error handling.
• Rectify the copy issue link by removing the extra slash at the beginning.
• Ensure consistency by standardizing all references to "next_path."
• Implement validation for "next_path" redirection to prevent potential Client-side cross-site scripting vulnerabilities.

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These issues are associated with following:

• [PLE-156]
• [PLE-158]
• [PLE-159]