Deck Weight System

We have reworked the Weight System as it was too unstable.

• The user can no longer switch between total weight and tons per m2 - Instead these have been combined.
• The Decks now only register the combined weight of all Units placed
• The Units now only check if they are above the T/m2 limit of the deck, but still show their total weight in the viewport.
• The weight system now works with Array.
• The system is much more responsive than in the previous iteration.

Bugs/Tweaks

• Login panel: Organisation name should now be allways automatically selected when username is set.
• Mezzanine Deck list in UI is now taller and the decks are sorted by name.
• User Presence: Users can now see themselves as an icon in the UI in addition to others.
• Units' labels in the viewport are now confined to the unit width and length, and the text will be reduced down to index if there's no room.
• fixed bug where saving a dxf drawing would incorrectly show that the save failed.