The manifest granted only xdg-pictures, on the premise that the portals make filesystem access
unnecessary. But a project refers to its media by absolute path and the document portal exposes
only the project file, so a project in ~/Videos or ~/Music opened with all its media missing.
Grant the home directory and the usual external-drive mount points (/media, /run/media, /mnt), as
other video editors on Flathub do; nothing system-wide.
Fixes#107
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>