Update RTE LinkModal validation response

[mcwinter07]

Why

• The current LinkModal in the RichTextEditor does not provide enough context for the user as to the validation method.

Context

• HTTP and HTTPS is currently required to ensure executable Javascript is not passed into the link
  • It is a simple validation function that we could potentially open up as a prop folks need to build upon it / find it too limiting, but at time of development this was considered enough to ensure security

Note

We haven't been able to get confirmation on the wording from the content team, but we're going to forge ahead with this since its been sitting with us for a while and some clarity is better than none

What

• Updates the link validation message
• Updates the description
• Add simple stories to cover the render states of the link modal

[changeset-bot]

🦋 Changeset detected

Latest commit: 5f6f2f1

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 1 package

Name	Type
@kaizen/components	Patch

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[github-actions]

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Last updated for commit 5f6f2f1: Merge branch 'main' into KZN-2351/update-link-validation-response