change: [UIE-9910] - Allow line breaks in Support Tickets markdown

[abailly-akamai]

Description 📝

Cloud Manager markdown for support tickets needs to have soft break support.

As of now now breaks get treated as spaces, which differs from the how the ticket markdown is being rendered in Admin. In order to bring consistency to both systems, Cloud Manager should align with this rule.

Changes 🔄

• Allow line breaks in Support Tickets markdown

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 📷

Before	After
Screen.Recording.2025-12-29.at.14.30.01.mov	Screen.Recording.2025-12-29.at.14.28.53.mov

How to test 🧪

Prerequisites

Verification steps

• Navigate to an open or close ticket and verify the Customer Support Specialist signature
• Navigate to /support/tickets?dialogOpen=true and confirm the update by toggling between the Description and Preview tabs

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

[linode-gh-bot]

Cloud Manager UI test results

🔺 1 failing test on test run #2 ↗︎

❌ Failing	✅ Passing	↪️ Skipped	🕐 Duration
1 Failing	869 Passing	11 Skipped	42m 23s

Details

Failing Tests
	Spec	Test
❌	clone-linode.spec.ts	Cloud Manager Cypress Tests→clone linode » can clone a Linode from Linode details page

Troubleshooting

Use this command to re-run the failing tests:

pnpm cy:run -s "cypress/e2e/core/linodes/clone-linode.spec.ts"