Introduce base help panel

[tmscarla]

Description

In the context of aligning PCM with CloudScape help system, this PR introduces a base help panel component to ease the user experience of our customers, providing a way to show helper text for different sections of the product in a cohesive manner.

In subsequent PRs we will gradually remove existing HelpTooltip instances in favor of the new help panel.

How Has This Been Tested?

• Added TitleDescriptionHelpPanel to tools property of AppLayout component in Layout.tsx and verified that help panel is displayed correctly

References

• https://cloudscape.design/components/help-panel/?tabId=playground

PR Quality Checklist

• [ ] I added tests to new or existing code
• [x] I removed hardcoded strings and used our i18n solution instead (see here)
• [ ] I made sure no sensitive info gets logged at any time in the codebase (see here) (e.g. no user info or details, no stacktraces, etc.)
• [ ] I checked that infrastructure/update_infrastructure.sh runs without any error
• [x] I checked that npm run build builds without any error
• [ ] I checked that clusters are listed correctly
• [ ] I checked that a new cluster can be created (config is produced and dry run passes)
• [ ] I checked that login and logout work as expected

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