fix(browser): improve storage state persistence in CDP strategy

Enhance storage state persistence mechanism in CDP browser strategy by:
- Explicitly saving storage state for each browser context
- Using proper file path for storage state
- Removing unnecessary sleep delay

Also includes test improvements:
- Simplified test configurations in playwright tests
- Temporarily disabled some CDP tests

crawl4ai/browser/profiles.py

@@ -17,7 +17,6 @@ from colorama import Fore, Style, init
 from ..async_configs import BrowserConfig
 from ..async_logger import AsyncLogger, AsyncLoggerBase
 from ..utils import get_home_folder
-from .strategies import is_windows
 
 class BrowserProfileManager:
     """Manages browser profiles for Crawl4AI.