Update the password recovery documentation with email OTP support

[Malith-19]

Document issue type

Type/NewFeature (Propose new topics or content to improve usability or provide additional value)

Description

• With the implementation of the Email OTP support for the password recovery flow, need to update the relevant docs.

Version

7.2.0

[Malith-19]

Developer Checklist

Please review and confirm the following items for identify the migration impact of the changes.(if any checkbox is not applicable mark it as N/A)

• [Behavioral Change] Does this change introduce a behavioral change to the product?
  • ↳ Approved by team lead
  • ↳ Label impact/behavioral-change added
• [Migration Impact] Does this change have a migration impact?
  •  ↳ Migration label added (e.g., 7.2.0-migration)
  •  ↳ Migration issues created and linked"
• [New Configuration] Does this change introduce a new configuration?
  •  ↳ Label config added
  •  ↳ Configuration is properly documented