Add search field to master list (product dictionary)

At present there is no easy way to search the master list (product dictionary). I suggest adding the standard search field to the top of the alphabetical list (and adding a magnifying glass icon above the letter A in the right column, as usual). That way we can easily find items, even if we don't know which word comes first (is it "peas-frozen" or "frozen peas"? I don't want to have to remember).