feat: Add network type to domain object

[FSM1]

Description

Added the Network Type property to the Domain object

Related Issue Or Context

Network type is required in consumers of the getDomains call to correctly implement the widget

How Has This Been Tested? Testing details.

Expanded the Domain type to also include the network type

Types of changes

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

Checklist:

• I have commented my code, particularly in hard-to-understand areas.
• I have ensured that all acceptance criteria (or expected behavior) from issue are met
• I have updated the documentation locally and in chainbridge-docs.
• I have added tests to cover my changes.
• I have ensured that all the checks are passing and green, I've signed the CLA bot