draft: refactor project so it sits on top of a standalone app

zero.Web.UI/node_modules/webpack-dev-server/lib/utils/setupExitSignals.js

@@ -0,0 +1,21 @@
+'use strict';
+
+const signals = ['SIGINT', 'SIGTERM'];
+
+function setupExitSignals(serverData) {
+  signals.forEach((signal) => {
+    process.on(signal, () => {
+      if (serverData.server) {
+        serverData.server.close(() => {
+          // eslint-disable-next-line no-process-exit
+          process.exit();
+        });
+      } else {
+        // eslint-disable-next-line no-process-exit
+        process.exit();
+      }
+    });
+  });
+}
+
+module.exports = setupExitSignals;