Add `npm run collect-strings` which updates the localization files
Add `npm run collect-strings` which updates the localization files

This is useful when working on a CL that changes localization strings
frequently during rebuilds.

Bug: chromium:1136655
Change-Id: Id9d56728351a07d796036664a3a730184c6356c5
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2744047
Reviewed-by: Simon Zünd <38944668e9e2ca98ccd0275b53370f90fa55c113@chromium.org>
Commit-Queue: Sigurd Schneider <f04d242e109628a27a0f75fd49a87722bcf291fd@chromium.org>

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