Backport of ui: Add ServerExternalAddresses to peer token create form into release/1.14.x

[hc-github-team-consul-core]

Backport

This PR is auto-generated from #15555 to be assessed for backporting due to the inclusion of the label backport/1.14.

The below text is copied from the body of the original PR.

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Description

To support HCP Cluster Peering, an additional text input needs to be added to the Create Peering modal for fallback server addresses.

Testing & Reproduction steps

To test against a real API you can do the following:

• Checkout this branch
• Run make ui-docker. This will take an eternity.
• Run make dev-docker
• Clone https://github.com/WenInCode/consul-setup
• go to consul-setup/setups/peering
• yarn
• docker-compose up
• once the docker container is up and running, run yarn setup:peerings
• Go to https://localhost:8501/ui
• Go to the peers page and create a new peering token to test out adding fallback addresses.
• You can observe the parameter being sent over in the network tab.

Links

• CC-3848
• Design

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Overview of commits

• ea23bac - a4d1535 - f782c16 - 198eb09 - 38c0e32 - b388266

[github-team-consul-core-pr-approver]

Auto approved Consul Bot automated PR