Fix BUILD.gn
Fix BUILD.gn

This is a follow-up to [1], which introduced new JavaScript resources
but didn't yet add them to `copied_devtools_modules`, breaking
presubmit. This patch also removes some duplicate entries.

[1]: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1962300

TBR=changhaohan@chromium.org

Change-Id: I78ace634928949a6072336d0a6c70017786a3ac8
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/1978522
Commit-Queue: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>
Reviewed-by: Benedikt Meurer <024a1e0af501338d11c3b837c6193d11c140d792@chromium.org>

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