* fix: make plugin activation assertion unconditional in cypress test
Addresses Gemini Code Assist review feedback on PR #84 (issue #96).
The 'Plugin is activated' test was using an if/else guard that caused
it to silently pass when the plugin row was missing. Replaced with a
direct unconditional cy.get() + cy.within() assertion so the test
fails clearly if the plugin is not found.
Optional plugin checks (Plugin Toggle, Kadence Blocks) retain their
conditional logic as those are genuinely optional in the test env.
Closes#96
* fix: reduce duplicated Cypress assertion for SonarCloud
* fix: lower Sonar new-code duplication in playground test