Log Message:
x11/xst: update to 0.9.0

No ChangeLog provide.
Selections of changes:
 - ST: Add WM_ICON_NAME property support
 - fix(x: main): do xrdb_load before setting cursor shape
 - fix: correctly encode mouse buttons >= 8 in X10 and SGR mode
 - Add 14th bit to XK_SWITCH_MOD bitmask
 - fonts fallback + .Xresources reloading