Browsing Basque translation

Translators: Having multiple voice types in Orca makes it possible for the user to more quickly identify properties of text non-visually, such as the fact that text is written in capital letters or is a link; or that text is actually visible on the screen as opposed to an Orca-specific message. The available voice types in Orca include: default, uppercase, hyperlink, and system -- each of which can be configured by the user to sound the way he/she finds most helpful. This string is displayed in the label for the combo box in which the user selects a voice type to configure.