does a short rest restore spell slots
Baldur’s Gate 3: Spells & Cantrips Explained - DualShockers
To recover your spell slots for the day, simply take a long rest. Getting the full benefits of a long rest will give you all of your spell slots back, while a partial long rest will only restore half of your spell slots.
Warlock Spell List - 5th Edition SRD
Warlocks in 5e draw their power from their Charisma ability for spellcasting, and they have a unique feature called the Pact Magic, which grants them a limited number of spell slots that refresh on a short rest.
Baldur's Gate 3 Guide to Spellcasting - FextraLife
In fact, by having a Short Rest every 10 minutes, Warlocks get enough spell slots that they don't have to constantly be out of them between levels 1 to 11.