Add a command to specify the extension preview port #5426
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WHY are these changes introduced?
Fixes #5424
Unable to configure Nginx config for random port of extension preview server when developing in Devcontainer
WHAT is this pull request doing?
Adds the
--previewable-extension-port
flag to the dev command by example--theme-app-extension-port
How to test your changes?
dev
command with--previewable-extension-port 8021
Post-release steps
You will need to edit the documentation about
dev
flagsMeasuring impact
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Checklist