Added phone number box at regestration

[abdullah50053]

Description

Added phone number input box to registration and updated admin view to reflect changes.

Motivation and Context

need to add a phone number to streamline communication

How Has This Been Tested

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• [ x] New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist

• [x ] My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.