Fix flaky render test

[aliabid94]

Render test was flaky because sometimes it would start editing a component while it was being re-rendered. Edited the test to start editing the last component in a render first, which ensures the render is complete before starting to edit.

[gradio-pr-bot]

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Install Gradio from this PR

pip install https://gradio-builds.s3.amazonaws.com/2095639b8b03fa5b089b4cddfe7eb8a23912289a/gradio-4.31.5-py3-none-any.whl

Install Gradio Python Client from this PR

pip install "gradio-client @ git+https://github.com/gradio-app/gradio@2095639b8b03fa5b089b4cddfe7eb8a23912289a#subdirectory=client/python"

Install Gradio JS Client from this PR

npm install https://gradio-builds.s3.amazonaws.com/2095639b8b03fa5b089b4cddfe7eb8a23912289a/gradio-client-0.19.4.tgz

[gradio-pr-bot]

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