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

.eslintrc.json

@@ -15,9 +15,15 @@
     }
   },
   "rules": {
-    // deine Regeln hier
-    //any nur warung geben und kein error
+    // ✅ wirklich gefährliche Fehler
+    "no-undef": "error",
+    "no-unreachable": "error",
+
+    // ✅ alles andere nur als Warnung
     "@typescript-eslint/no-explicit-any": "warn",
-    "@typescript-eslint/no-unused-vars": "warn"
+    "@typescript-eslint/no-unused-vars": "warn",
+    "react-hooks/exhaustive-deps": "warn",
+    "@next/next/no-img-element": "warn",
+    "react/no-unescaped-entities": "warn"
   }
 }