small update 0.799 — Wizard Duel Steam update #759386

generaladded an acheivement for completing the campaignbalancerebalanced several combo spells: planned moves (now provides redraw instead of draw, start at 0) quicken (start at 0, is now also common and reduced knowledge cost by 1) twin missile (start at 0, reduced knowledge cost by 1) exaggeration (gives one less mana)fixesfixed an issue where duplicated effects could use the same game object even if they consume itfixed the card imp to not show up anymore after all cards are unlockedfixed campaign end screen not responding