fix: downgrade node version to match electron version and run tests

package.json

@@ -4,7 +4,7 @@
     "private": true,
     "main": "static/electron.js",
     "engines" : {
-      "node" : ">=22.15.0"
+      "node" : ">=20.19.1"
     },
     "devDependencies": {
         "@axe-core/playwright": "=4.4.4",