[ts] Type-check network/NetworkConfigView.js with TypeScript
[ts] Type-check network/NetworkConfigView.js with TypeScript

R=993fcadce4d04090da2fefd557a0995e7966c8d5@chromium.org

Bug: chromium:1011811
Change-Id: I113d60176367d3fda1c903034494d96a897b9025
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2460910
Reviewed-by: Jack Franklin <993fcadce4d04090da2fefd557a0995e7966c8d5@chromium.org>
Commit-Queue: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>

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