Fix: Always show vonDatum and bisDatum in fetch URL for analog inputs chart

- Ensure local date state is never empty by falling back to default date if Redux is empty
- Prevent missing date values in fetch URL after multiple dropdown or button interactions
- Improves reliability of

CHANGELOG.md

@@ -1,3 +1,12 @@
+## [1.6.630] – 2025-07-22
+
+- Fix: Preserve chart state during zoom, pan, and date changes
+
+- Added React.useMemo to memoize chartData and chartOptions to prevent unnecessary re-renders.
+- Ensured chart zoom and pan states are maintained during interactions.
+- Improved performance and user experience by avoiding chart
+
+---
 ## [1.6.629] – 2025-07-22
 
 - Fix: Preserve chart state during zoom, pan, and date changes