chore: 整理 third-party Dark Reader 目录并移除本地说明文件跟踪

third-party/darkreader/tests/inject/support/test-utils.ts

@@ -0,0 +1,21 @@
+// Loaded with HTML/DOM only
+
+export function multiline(...lines: string[]): string {
+    if (lines.length < 1) {
+        return '\n';
+    }
+    if (lines[lines.length - 1] !== '') {
+        lines.push('');
+    }
+    return lines.join('\n');
+}
+
+export function timeout(delay: number): Promise<void> {
+    return new Promise<void>((resolve) => setTimeout(resolve, delay));
+}
+
+export function waitForEvent(eventName: string): Promise<void> {
+    return new Promise<void>((resolve) => {
+        document.addEventListener(eventName, () => resolve(), {once: true});
+    });
+}