change: [UIE-9919] - Address post-demo feedback for Network Load Balancers

[tanushree-akamai]

Description 📝

Address post-demo feedback for Network Load Balancers (points 1- 3 from the ticket).

Changes 🔄

List any change(s) relevant to the reviewer.

• Modify empty state message casing to: 'High capacity network load balancing service'
• Rename LKE column to 'Cluster' on NLB list & detail page
• Modify columns displayed in smaller screen size: show IPv6 instead of IPv4 (IPv4 hidden)

Scope 🚢

Upon production release, changes in this PR will be visible to:

• All customers
• Some customers (e.g. in Beta or Limited Availability)
• No customers / Not applicable

Preview 📷

1. Modify empty state message casing to: 'High capacity network load balancing service'
   |

2. Rename LKE column to 'Cluster' on NLB list & detail page
   

3. Reorder mobile view: show IPv6 before IPv4 (IPv4 hidden on mobile)
   

How to test 🧪

Verification steps

• Turn on Legacy Server Handlers in MSW
• Enable Network Load Balancer feature from dev tools
• Navigate to /netloadbalancers

For point 1:

• Update the serverHandlers.ts so the /netloadbalancers mock API returns an empty array.
• Verify empty state message

For point 2:

• Verify Cluster column in /netloadbalancers list
• Verify NLB detail page by clicking on a netloadbalancer

For point 3:

• Resize browser width to <960px
• "Virtual IP (IPv6)" column is visible and displayed

Author Checklists

As an Author, to speed up the review process, I considered 🤔

👀 Doing a self review
❔ Our contribution guidelines
🤏 Splitting feature into small PRs
➕ Adding a changeset
🧪 Providing/improving test coverage
🔐 Removing all sensitive information from the code and PR description
🚩 Using a feature flag to protect the release
👣 Providing comprehensive reproduction steps
📑 Providing or updating our documentation
🕛 Scheduling a pair reviewing session
📱 Providing mobile support
♿ Providing accessibility support

• I have read and considered all applicable items listed above.

As an Author, before moving this PR from Draft to Open, I confirmed ✅

• All tests and CI checks are passing
• TypeScript compilation succeeded without errors
• Code passes all linting rules

[dmcintyr-akamai]

fyi the clone-linode.spec.ts test failed most likely bc of server side issue. prob not related to your pr.

[bnussman-akamai]

Changes look good. Just make sure you add a changeset!

[dwiley-akamai]

Code review ✅
Verification steps ✅

As Banks mentioned, we'll need a changeset here for the manager package (Upcoming Features category)

[linode-gh-bot]

Cloud Manager UI test results

🎉 860 passing tests on test run #3 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
0 Failing	860 Passing	11 Skipped	45m 13s