WebKitGTK-DND-Fix

WebKitGTK-DND-Fix Research and CI notebook for restoring trusted file drag-and-drop on WebKitGTK and WPE after CVE-2025-13947. The issue CVE-2025-13947 WSA-2025-0009, GHSA-j77f-3hf7-7rvg let web content read local file contents through drag-and-drop on WebKitGTK. The upstream fix, bugs.webkit.org...