Igorosipov wid 734 fix create team button

[igorosip0v]

• Refactor create team flow to separate from invites flow
• Invite URL now uses /join page
• Invites flow implemented on Join page
• Create /join-callback page to make loading animation there later
• Turn off react strict mode in nextjs config
• Fix GT America font connection (tailwind config)

[andy-t-wang]

Feel free to merge this and deploy tom after fixing