Check that ip should be different from gateway

[AlaaElattar]

Description

• Complex error when user add ip same as gateway.
• Wierd validation also happened.
• IPv6 can be added to public config of node without Gateway IPv6

Changes

• Check they're not the same before sending the request.
• Fix behaviour of validation.
• Check that both IPv6 and Gateway IPv6 should be added together.

Related Issues

#1618
#1668
#1732

Screencast.from.12-19-2023.01.16.27.PM.webm

Checklist

• Tests included
• Build pass
• Documentation
• Code format and docstrings
• Screenshots/Video attached (needed for UI changes)

[zaelgohary]

I think validation should happen before clicking the button and making the request. If 2 IPs are the same, the button should be disabled.

[AlaaElattar]

I think validation should happen before clicking the button and making the request. If 2 IPs are the same, the button should be disabled.

[mohamedamer453]

• The validation isn't very accurate in some cases like the one seen below the validation is triggered with incorrect cases and in the case that should trigger it, it doesn't get triggered.

  Screencast.from.13-12-23.13.50.21.webm

[0oM4R]

please check this comment
#1668 (comment)

[AlaaElattar]

• The validation isn't very accurate in some cases like the one seen below the validation is triggered with incorrect cases and in the case that should trigger it, it doesn't get triggered.

  Screencast.from.13-12-23.13.50.21.webm
  

should be fixed

[zaelgohary]

All looks good! Just a small enhancement.