Fixes and additions

This time around, it is a smaller update. The main reason is that we have identified some smaller issues, which should be addressed. Luckily, this also gives us the opportunity to integrate some new features and enhancements that we've been perfecting since last week's major update.

Additions:

• New scattered item: seashells
• New deco: new life rock and 2 new types of wood

You can now view the interplay of different water properties and water-chemistry concepts: There is a second tab in the (individual) charting window

Fixes:

• Fixed unresponsiveness of tabs in Help window
• Reduced memory issue on first startup

(when various thumbnails are computed). This should reduce / eliminate startup crashes! - Further reduction of micro stutters -- please give us feedback whether we improved further! - Fixed Depth of Field issue - Fixed rounding issue when using specific gravity as salinity unit - Fixed hanging on very wide screens