fix(gui): Fix "about" menu entry
fix(gui): Fix "about" menu entry

This fixes the capitalization of the "About Etcher" entry in the application menu

Change-Type: patch

resin-io/resin-etcher,resin-io/herostratus,resin-io/herostratus,resin-io/etcher,resin-io/etcher,resin-io/resin-etcher,resin-io/etcher,resin-io/etcher,resin-io/etcher