NexoPOS 5.3.9

This minor update to NexoPOS includes several bug fixes and a significant enhancement to the accounting section.
In early v5. x, we've implemented accounting features to the POS, but we've realized that to keep consistency, we had to remove it from places where it shouldn't be, like on Cash Registers. For many new user, it was confusing as accounts were required before making a cashout/cashin operation. Now it's no longer available, and even on NexoPOS v6x, it will not be removed.

Changelog:

• Fixed: Order Code Generation Now Multistore Friendly
• Fixed: Import Localization Helper
• update translation strings, update German translation