[shotwell] flatpak: Allow access to user-mounted media

[Jens Georg <jensgeorg src gnome org>]

commit 58ef548c68bed11fea78e4317ae125645e8109a4
Author: Jens Georg <mail jensge org>
Date:   Sun Aug 18 15:10:12 2019 +0200

    flatpak: Allow access to user-mounted media

 flatpak/org.gnome.Shotwell.json | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/flatpak/org.gnome.Shotwell.json b/flatpak/org.gnome.Shotwell.json
index b7c08a35..88bce896 100644
--- a/flatpak/org.gnome.Shotwell.json
+++ b/flatpak/org.gnome.Shotwell.json
@@ -11,6 +11,8 @@
     "finish-args" : [
         "--env=DCONF_USER_CONFIG_DIR=.config/dconf",
         "--filesystem=~/.config/dconf:ro",
+        "--filesystem=/media",
+        "--filesystem=/run/media",
         "--filesystem=xdg-download",
         "--filesystem=xdg-pictures",
         "--filesystem=xdg-run/dconf",