clamtk: fix scanning (#6074)

etc/profile-a-l/clamtk.profile

@@ -1,4 +1,5 @@
 # Firejail profile for clamtk
+# Description: Easy to use, light-weight, on-demand virus scanner for Linux systems
 # This file is overwritten after every install/update
 # Persistent local customizations
 include clamtk.local
@@ -7,15 +8,22 @@ include globals.local
 
 include disable-exec.inc
 
+# Add the below lines to your clamtk.local if you update signatures databases per-user:
+#ignore net none
+#netfilter
+#protocol inet,inet6
+
 caps.drop all
 ipc-namespace
 net none
 no3d
 nodvd
-nogroups
+# nogroups breaks scanning
+#nogroups
 noinput
 nonewprivs
-noroot
+# noroot breaks scanning
+#noroot
 nosound
 notv
 nou2f
@@ -25,7 +33,9 @@ seccomp
 
 private-dev
 
-dbus-user none
+dbus-user filter
+dbus-user.talk ca.desrt.dconf
+dbus-user.talk org.gtk.vfs.UDisks2VolumeMonitor
 dbus-system none
 
 restrict-namespaces