e2e tests (#17)

* Setup playwright for e2e tests
Fixes #12

* Chromium

* First working test, clean up

* Merge actions

* New headless mode

* Clean up, bugfix

* Bug fixes, cleaner sendMessage code

* Rebase

* Rebase

* Load tokens and open public page

* Test CI

* Working test

* Lint

* Try to address flakyness

* Clean up test

* Comment

* No export

* More clean up

* More clean up

* Adds authorized pop up test

* Adds comment

* Add snapshots

* New linux screenshots

playwright.config.ts

@@ -0,0 +1,30 @@
+import { defineConfig, devices } from '@playwright/test'
+
+export default defineConfig({
+    testDir: './tests',
+    timeout: 30 * 1000,
+    expect: {
+        timeout: 5000,
+    },
+    fullyParallel: true,
+    forbidOnly: !!process.env.CI,
+    retries: process.env.CI ? 2 : 0,
+    workers: process.env.CI ? 1 : undefined,
+    reporter: [['html', { open: 'never' }]],
+    use: {
+        actionTimeout: 0,
+        trace: 'on-first-retry',
+    },
+
+    projects: [
+        {
+            name: 'chromium',
+            use: {
+                ...devices['Desktop Chrome'],
+            },
+        },
+    ],
+
+    /* Folder for test artifacts such as screenshots, videos, traces, etc. */
+    // outputDir: 'test-results/',
+})