Dependency updates, clean up shared test data, create screenshot updater for README

playwright.doc-screenshot.config.ts

@@ -0,0 +1,27 @@
+import { defineConfig } from '@playwright/test';
+
+export default defineConfig({
+	use: {
+		locale: 'en-GB',
+		timezoneId: 'Europe/Amsterdam'
+	},
+	webServer: {
+		command: 'yarn build && yarn preview',
+		port: 4173
+	},
+	testDir: './tests/doc-screenshots',
+	outputDir: './test-results/screenshots',
+	projects: [
+		{
+			name: 'Light Mode',
+			use: {
+				viewport: { width: 1440, height: 900 },
+				colorScheme: 'light'
+			}
+		},
+		{
+			name: 'Dark Mode',
+			use: { viewport: { width: 1440, height: 900 }, colorScheme: 'dark' }
+		}
+	]
+});