Chord Library

* Add left-hand mode, which reverses the order of strings
* Basic language support for Spanish, Chinese, Korean, French
* Fix not showing the correct chord when a search result is clicked
* Sort libraries by most recent when adding chords
* New option to duplicate a library
* Make chord viewer fit on smaller screens; improve layout
* Tweak logic around diminished and augmented chords
* Persist chord tuning settings over app restart
* Fix various crashes, and apply various code improvements