STEIN - A few bug fixes and a new server (v0.2.6)

Patchnotes:

General:

- Chat now supports smileys
- Reduced gold rewards for Wave Dungeon

User-Interface:

- Added User Interface scaling into the login screen
- Added a Sell, Trash and Buy Max amount button

Bug Fixes:

- Fixed a bug where player ghosts appeared after a player respawned in dungeons
- Fixed Respawn point for the tutorial quests in Farshore
- Fixed a bug where items could not be picked due to UI overlaps.
- With full inventory, a purchase in the shop is now canceled correctly
- Player movements are now correctly interrupted when performing an attack