x11-libs/libfm-qt: patch issue with phantom desktop files

x11-libs/libfm-qt: patch issue with phantom desktop files

On some machines (slow enough?), visible desktop entries such as
'trash' would cause related temporary no longer existing files
being displayed on the desktop as well.

- https://github.com/lxqt/pcmanfm-qt/issues/944
- https://github.com/lxqt/libfm-qt/commit/f944be7d

Package-Manager: Portage-2.3.66, Repoman-2.3.12
Signed-off-by: Jimi Huotari <chiitoo@gentoo.org>
Closes: https://github.com/gentoo/gentoo/pull/12108
Signed-off-by: Andreas Sturmlechner <asturm@gentoo.org>