Hotfix for Shadow Dancer & Dread Knight, plus various fixes.

Balance

Shadow Dancer (Nerf)
- Attack Speed: 1.471 --> 1.418

Dread Knight (Nerf)
- Attack Speed: 1.471 --> 1.418

Fixes

- Fixed some rare cases where outdated player statistics/data were used when updating ratings/stats, resulting in incorrect numbers
- Fixed a bug where the postgame builds tab wasn't properly showing the amount of king upgrades per wave
- Fixed a bug with Dwarf Banker & Big Wig mistakenly gaining mana/gold in Weekly Challenge
- Fixed a bug where ping wheel options for Wave 21+ were incorrect while the battle was in progress
- Fixed a bug where certain player accounts were receiving more essence per game than intended due to an unintended interaction between bonus essence multipliers

Improvements

- New Player Quests are now earnable in Classic, to accommodate Classic-only/Classic-focused players
- Updated translations