[Draft] POC: Component migration approach using Tooltip

[Jatin24062005]

Issue:

#3965
Following up on the above mentioned discussion.

This is a small POC to demonstrate the migration approach using a single component (CopyableInput), to reduce cognitive load during review.

Included:

• Add a new Test Coverage
• Component structure (types, styles, storybook)
• Example of how CopyableInput children structure could look
• Following the "one component per PR" approach suggested

This should help make the discussion more concrete and easier to review visually.

Happy to adjust the approach based on feedback from @clairep94.

I have verified that this pull request:

• has no linting errors (npm run lint)
• has no test errors (npm run test)
• has no typecheck errors (npm run typecheck)
• is from a uniquely-named feature branch and is up to date with the develop branch.
• is descriptively named and links to an issue number, i.e. Fixes #123
• meets the standards outlined in the accessibility guidelines

[Jatin24062005]

The test runner (cmd : npm run test) is currently broken in this repo. This has been raised separately and a fix is in progress in #3986. All tests in this PR have been verified locally and pass.