Show song length in the library
Similar to the "Current" tab. For the "Current" tab we use
time but it is marked as deprecated, so prefer and parse the
duration field from the
lsinfo response, which may contain a fractional part.
Consider replacing the '?' for unknown times with a dash or removing it altogether.
items array is not sufficient to store this, we need to abandon
struct strv. Consider using
library_tab_add() is only used to append items and the array is only reset in one place.
Deleting a branch is permanent. It CANNOT be undone. Continue?