feat: Added headless test configuration

(vscode debug support)

.vscode/launch.json

@@ -0,0 +1,20 @@
+{
+  // Use IntelliSense to learn about possible attributes.
+  // Hover to view descriptions of existing attributes.
+  // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "type": "chrome",
+      "request": "attach",
+      "name": "Unit tests",
+      "address": "localhost",
+      "port": 9333,
+      "sourceMaps": true,
+      "webRoot": "${workspaceFolder}",
+      "pathMapping": {
+        "/_karma_webpack_": "${workspaceFolder}"
+      }
+    }
+  ]
+}