does short rest recover spell slots

The main reasons to take warlock levels on a paladin are usually for style and for access to a charisma based ranged attack in eldritch blast, some short rest spell slots for smites and some invocations.

Druids of the Land subclass recover a number of spell slots equal to half their level (rounded up). This only occurs on the first Short Rest of the day.

The warlock gets few spell slots, but they refresh every short rest and scale to the highest available level.