Improved: General optimisations

Improved: Import & Export – now with label support

Redesigned: Holdings Overview
New: Labels for Holdings
New: Group by Product & Filter by Label
Improved: Search
Optimized: iPad Layout

New: Metal Calculator
Bug Fixes & Performance Improvements

New: Import & Export Holdings
Improved: Chart Performance
Bug Fixes & Stability

Updated the chart serving domain to charts.gp.
Fixed dependency and landscape mode issues.