Migrate `front_end/web_audio` to `devtools_entrypoint`

Bug: 1101738
Change-Id: I68733ba951f4fba8fe1eee4832d06a884016ec33
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2328861
Commit-Queue: Jan Scheffler <[email protected]>
Reviewed-by: Jack Franklin <[email protected]>
diff --git a/devtools_grd_files.gni b/devtools_grd_files.gni
index 6843683..8bd17ef 100644
--- a/devtools_grd_files.gni
+++ b/devtools_grd_files.gni
@@ -284,6 +284,7 @@
   "front_end/ui/utils/utils.js",
   "front_end/wasmparser_worker/wasmparser_worker.js",
   "front_end/wasmparser_worker_entrypoint.js",
+  "front_end/web_audio/graph_visualizer/graph_visualizer.js",
   "front_end/web_audio/web_audio-legacy.js",
   "front_end/web_audio/web_audio.js",
   "front_end/web_audio/web_audio_module.js",