fix: enhance text consistency and SNI table UI

[nekolab]

Changes:

• Align vault and plugin delete modal titles by changing "Delete Plugin/Vault" to "Delete a Plugin/Vault", matching other entity modal titles.
• Correct typo in the SNI name placeholder.
• Introduce disable-row-click prop to EntityBaseTable for improved control over clickable row UI in the KTable component. The current implementation of KTable doesn't allow us to wrap it in other component while still keeping row clickable UI switchable
• Deactivate clickable UI for SNI list (no detail page for SNI entity).
• Prioritize displaying the plugin instance name over the plugin name in the delete modal.

Summary

PR Checklist

• Naming & Structure: the files and package structure use the conventions outlined in the Creating a Package docs.
• Tests pass: check the output of all package unit and/or component tests.
  • If this PR is the result of a bug, test coverage was added accordingly.
• Functional: all changes do not break existing APIs, but if so, a BREAKING CHANGE commit is in place to bump the major version.
• Conventional Commits all commits follow the conventional commit standards outlined in the main README.
• Docs: includes a technically accurate README, and the docs have been updated accordingly based on the changes in this PR.

[Leopoldthecoder]

LGTM