[JSDOC2TS]: Migrate js_main
[JSDOC2TS]: Migrate js_main

Bug: chromium:1158760
Change-Id: I210b01ecb0505dd1083d3342dba009787cf7952e
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2789344
Commit-Queue: Jan Scheffler <8abd9e3d93041d096604cb2a1b3070dd7075ba7b@chromium.org>
Reviewed-by: Tim van der Lippe <dba8716ee7f8d16236046f74d2167cb94410f6ed@chromium.org>

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