Bug: Network Switcher bypasses validation

[Jaydbrown]

Component: Network Switcher
Issue: Client-side validation can be bypassed, allowing invalid payloads to be sent to the smart contract.

Steps to reproduce:

1. Navigate to Network Switcher
2. Trigger action
3. Observe bug.

Expected: Graceful handling.

[theseven7h]

I have read the description and have a solid understanding of what's needed. Expect a PR in 24hours