docs(testing): improve standalone testing documentation - #31313

docs(testing): improve standalone testing documentation#31313

Zac-Smucker-Bryan wants to merge 2 commits into

ionic-team:mainionic-team/ionic-framework:mainfrom

Zac-Smucker-Bryan:standalone-testing-docs-updateZac-Smucker-Bryan/ionic-framework:standalone-testing-docs-updateCopy head branch name to clipboard