Ensure browser supports workers-in-workers (#1325)

Fixes #1324

worker-tsconfig.json

@@ -8,6 +8,7 @@
     "src/features/**/shared/**/*",
     "src/features/worker-utils/**/*",
     "src/features-worker/**/*",
+    "src/worker-shared/**/*",
     "src/sw/**/*"
   ]
 }