Added a new phrase category for cheers, bon apetit and so on...

Fixed up the speech rate slider a bit, centered the default value. Have it change rate temporarily, not globally...

First use of flutter's dropdownmenu widget, to select the language in the speech screen...

A slider to control the speech playback rate, slow for beginners and fast for advanced!...

Updated the description for bao and made mantou (bao before bao was bao) a separate category...

New restaurant in Las Vegas...

Replaced the icons for the phrase and region menus. I think they're better...

Fixed some json problems, so more phrases show up...