Add Sort by Queue menu item to popup menu (#1040)

Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>

gtk/transmission-ui.xml

@@ -86,6 +86,7 @@
       <menuitem action='sort-by-age'/> 
       <menuitem action='sort-by-name'/> 
       <menuitem action='sort-by-progress'/> 
+      <menuitem action='sort-by-queue'/> 
       <menuitem action='sort-by-ratio'/> 
       <menuitem action='sort-by-size'/> 
       <menuitem action='sort-by-state'/>