[sushi] flatpak: add --share=network

[Cosimo Cecchi <cosimoc src gnome org>]

commit 247244bc35ff8121e041d8b21e948bd5dc2814f3
Author: Cosimo Cecchi <cosimoc gnome org>
Date:   Tue Jun 18 17:47:30 2019 -0700

    flatpak: add --share=network
    
    We use this to fetch music cover art.

 flatpak/org.gnome.NautilusPreviewer.json | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/flatpak/org.gnome.NautilusPreviewer.json b/flatpak/org.gnome.NautilusPreviewer.json
index 6e98ae0..c0c76ec 100644
--- a/flatpak/org.gnome.NautilusPreviewer.json
+++ b/flatpak/org.gnome.NautilusPreviewer.json
@@ -21,6 +21,7 @@
         "--socket=x11",
         "--socket=wayland",
         "--share=ipc",
+        "--share=network",
         "--device=dri",
         "--talk-name=org.freedesktop.FileManager1",
         "--filesystem=xdg-run/dconf",