feat(ui): email signup form page + /chats

Description

• Create a signup form to capture users email.

Screen Recording 2023-12-03 at 22.03.01.mov

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Checklist

• the MR description has been reviewed
• this MR contains text changes and they have been reviewed OR there are no texts changes
• this MR contains GUI/CLI changes and they have been reviewed OR there are no GUI/CLI changes
• this MR contains API changes and they have been reviewed OR there are no API changes