Enable TypeScript for LighthouseStartView.js
Enable TypeScript for LighthouseStartView.js

Bug: 1011811
Change-Id: Ida8b5aa3b2883ba7fce76eca0af96627a23a885b
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2520818
Reviewed-by: Mathias Bynens <17a2cbc4e33156874a9862b0f530521117e66a3d@chromium.org>
Commit-Queue: Alex Rudenko <d8d88e7d7e77f69e23d1d1432231196fb8e02a62@chromium.org>

ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend,ChromeDevTools/devtools-frontend