Make opening and printing tooltip non-generic.
Previously, the tooltips referred to generic "Open an exisitng document" or "Print document", as defined in the kframework.
I have now made these descriptions match what they do, since they are specific to font files and printing font previews.
This updates both the menubar action tooltips as well as button tooltips.
Current strings: "Open an existing document", "Print document" Proposed strings: "Open an existing font file", "Print font preview"
These strings are also displayed on the menubar actions (old):
Edited by Corbin Schwimmbeck