[JSDOC2TS]: Migrate main

Bug: chromium:1158760
Change-Id: Ibe9b0fe480794bb788253a3b9902d4cc42a5ca2e
Reviewed-on: https://chromium-review.googlesource.com/c/devtools/devtools-frontend/+/2789347
Commit-Queue: Jan Scheffler <janscheffler@chromium.org>
Reviewed-by: Tim van der Lippe <tvanderlippe@chromium.org>
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index b142c6d..6f5b44b 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -137,7 +137,7 @@
 def _CheckExperimentTelemetry(input_api, output_api):
     experiment_telemetry_files = [
         input_api.os_path.join(input_api.PresubmitLocalPath(), 'front_end',
-                               'main', 'MainImpl.js'),
+                               'main', 'MainImpl.ts'),
         input_api.os_path.join(input_api.PresubmitLocalPath(), 'front_end',
                                'core', 'host', 'UserMetrics.ts')
     ]