feat: Added whatsapp-light2 and whatsapp-dark2 themes

[FajarKim]

Description

Added whatsapp-light2 and whatsapp-dark2 themes (based on version WhatsApp 2.23.23.2)

Type of change

• Bug fix (added a non-breaking change which fixes an issue)
• New feature (added a non-breaking change which adds functionality)
• Updated documentation (updated the readme, templates, or other repo files)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

How Has This Been Tested?

• Tested locally with a valid username
• Tested locally with an invalid username
• Ran tests with composer test
• Added or updated test cases to test new features

Checklist:

• I have checked to make sure no other pull requests are open for this issue
• The code is properly formatted and is consistent with the existing code style
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings

Screenshots

Theme	Preview
whatsapp-light
whatsapp-dark

[DenverCoder1]

Maybe instead of changing these we could create new themes like whatsapp-light2, whatsapp-dark2 so that it doesn't change what it looks like in case some people who are using the old ones want it to stay the same?

[FajarKim]

Maybe instead of changing these we could create new themes like whatsapp-light2, whatsapp-dark2 so that it doesn't change what it looks like in case some people who are using the old ones want it to stay the same?

Yeah, okay then. I've changed it.

[DenverCoder1]

Thanks for the contribution 👍