feat: refactor ObjectivesBoard and enhance column visibility management

- Replaced local state management in `ObjectivesBoard` with `useObjectivesCollapse` hook for better state handling.
- Updated collapse button logic to use the new hook's toggle function, improving code clarity.
- Refactored `useColumnVisibility` to load user preferences on mount and persist visibility changes, enhancing user experience.
- Integrated user preferences for Kanban filters in `TasksContext`, allowing for persistent filter settings across sessions.

hooks/useObjectivesCollapse.ts

@@ -0,0 +1,39 @@
+import { useState, useEffect } from 'react';
+
+const STORAGE_KEY = 'towercontrol_objectives_collapsed';
+
+export function useObjectivesCollapse() {
+  const [isCollapsed, setIsCollapsed] = useState(false);
+
+  // Charger l'état au montage
+  useEffect(() => {
+    try {
+      const saved = localStorage.getItem(STORAGE_KEY);
+      if (saved !== null) {
+        setIsCollapsed(JSON.parse(saved));
+      }
+    } catch (error) {
+      console.warn('Erreur lors du chargement de l\'état de collapse des objectifs:', error);
+    }
+  }, []);
+
+  const toggleCollapse = () => {
+    setIsCollapsed(prev => {
+      const newValue = !prev;
+      
+      // Sauvegarder dans localStorage
+      try {
+        localStorage.setItem(STORAGE_KEY, JSON.stringify(newValue));
+      } catch (error) {
+        console.warn('Erreur lors de la sauvegarde de l\'état de collapse des objectifs:', error);
+      }
+      
+      return newValue;
+    });
+  };
+
+  return {
+    isCollapsed,
+    toggleCollapse
+  };
+}