webui: Fix missing download size in Download database button

Author: MKleusberg

webui/templates/database.html

@@ -224,6 +224,7 @@
             Releases:     "[[ .DB.Info.Releases ]]",
             SourceURL:    "[[ .DB.Info.SourceURL ]]",
             Tables:       [[ .DB.Info.Tables ]],
+            Size:         [[ .DB.Info.DBEntry.Size ]],
             Tags:         "[[ .DB.Info.Tags ]]",
             [[ if .Meta.LoggedInUser ]]
                 Loggedin: "true",