Add Margins to Empty Table Message for Consistent Spacing

[karankoder]

Description

This PR resolves the issue of inconsistent margins when an empty table message is displayed. Previously, the empty message lacked the margin-top and margin-bottom spacing that is present when the table contains data, resulting in a visual inconsistency.

Issue addressed

Closes #881

Addresses #881

Before/after screenshots

Changelog

• Description: Added margin-top: 16px and margin-bottom: 16px to the empty table message to ensure consistent spacing with the table header and data rows.
• Products impact: bugfix
• Addresses: - [KTable]: Add margin to empty text #881
• Components: KTable
• Breaking: no
• Impacts a11y: no
• Guidance:

Testing checklist

• Contributor has fully tested the PR manually
• If there are any front-end changes, before/after screenshots are included
• Critical and brittle code paths are covered by unit tests
• The change is described in the changelog section above

Reviewer guidance

• Is the code clean and well-commented?
• Are there tests for this change?
• Are all UI components LTR and RTL compliant (if applicable)?
• Add other things to check for here

Comments