Simple playwright e2e test (#234)

playwright.config.ts

@@ -0,0 +1,23 @@
+import { PlaywrightTestConfig } from "@playwright/test";
+
+const config: PlaywrightTestConfig = {
+  testDir: "./e2e-tests",
+  maxFailures: 1,
+
+  /* Reporter to use. See https://playwright.dev/docs/test-reporters */
+  reporter: "html",
+  /* Shared settings for all the projects below. See https://playwright.dev/docs/api/class-testoptions. */
+  use: {
+    /* See https://playwright.dev/docs/trace-viewer */
+    trace: "retain-on-failure",
+
+    // These options do NOT work for electron playwright.
+    // Instead, you need to do a workaround.
+    // See https://github.com/microsoft/playwright/issues/8208
+    //
+    // screenshot: "on",
+    // video: "retain-on-failure",
+  },
+};
+
+export default config;