Presubmit: Limit number of files in JS style check
Presubmit: Limit number of files in JS style check

On very large CLs, it's possible that we can run into the same windows
command line length issues for the _CheckDevToolsStyleJS as _CheckDevToolsStyleCSS.

This CL imposes the same 50 file limit as the CSS style check.

Bug: 1198243
Change-Id: I84561dcd37c88c00ceb141cfc21adc050a9544cf
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2821307
Commit-Queue: Brandon Goddard <37b103671c22e8d219b41940d66d3220ab618ae9@microsoft.com>
Reviewed-by: Sigurd Schneider <f04d242e109628a27a0f75fd49a87722bcf291fd@chromium.org>
Reviewed-by: Jack Franklin <993fcadce4d04090da2fefd557a0995e7966c8d5@chromium.org>

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