8eb3f3c618
On GTK, wxFileDialog defaults to local_only mode which hides GVFS-mounted filesystems like Google Drive, SMB shares, and external drives mounted through GVFS. This adds a platform-specific function that disables local_only mode to show these network/virtual filesystems. Apply AllowNetworkFileSystems to all file dialogs across KiCad to ensure directories on network filesystems are visible when browsing for files. Fixes https://gitlab.com/kicad/code/kicad/-/issues/14372