feat(browser): improve browser profile management and cleanup

Enhance browser profile handling with better process cleanup and documentation:
- Add process cleanup for existing Chromium instances on Windows/Unix
- Fix profile creation by passing complete browser config
- Add comprehensive documentation for browser and CLI components
- Add initial profile creation test
- Bump version to 0.6.3

This change improves reliability when managing browser profiles and provides better documentation for developers.

tests/profiler/test_crteate_profile.py

@@ -0,0 +1,32 @@
+from crawl4ai import BrowserProfiler
+import asyncio
+
+
+if __name__ == "__main__":
+    # Example usage
+    profiler = BrowserProfiler()
+    
+    # Create a new profile
+    import os
+    from pathlib import Path
+    home_dir = Path.home()
+    profile_path = asyncio.run(profiler.create_profile( str(home_dir / ".crawl4ai/profiles/test-profile")))
+    
+    print(f"Profile created at: {profile_path}")
+
+        
+            
+    # # Launch a standalone browser
+    # asyncio.run(profiler.launch_standalone_browser())
+    
+    # # List profiles
+    # profiles = profiler.list_profiles()
+    # for profile in profiles:
+    #     print(f"Profile: {profile['name']}, Path: {profile['path']}")
+    
+    # # Delete a profile
+    # success = profiler.delete_profile("my-profile")
+    # if success:
+    #     print("Profile deleted successfully")
+    # else:
+    #     print("Failed to delete profile")