wip: implement e2e tests with cypress

cypress.config.js

@@ -0,0 +1,8 @@
+const {defineConfig} = require("cypress");
+
+module.exports = defineConfig({
+    e2e: {
+        baseUrl: 'https://myep-next-booking.ddev.site',
+        supportFile: false,
+    },
+});