fix: update task filtering and layout in ObjectivesBoard

- Removed 'freeze' status from in-progress tasks filtering to improve accuracy.
- Added a new column for 'freeze' tasks, enhancing task visibility and organization on the board.
- Adjusted grid layout to accommodate the new column, ensuring a balanced display.

src/components/kanban/ObjectivesBoard.tsx

@@ -187,12 +187,13 @@ export function ObjectivesBoard({
               <CardContent className="pt-0">
                 {(() => {
                 // Séparer les tâches par statut
-                const inProgressTasks = tasks.filter(task => task.status === 'in_progress' || task.status === 'freeze');
+                const inProgressTasks = tasks.filter(task => task.status === 'in_progress');
                 const todoTasks = tasks.filter(task => task.status === 'todo' || task.status === 'backlog');
                 const completedTasks = tasks.filter(task => task.status === 'done' || task.status === 'archived');
+                const frozenTasks = tasks.filter(task => task.status === 'freeze');
 
                 return (
-                  <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+                  <div className="grid grid-cols-1 lg:grid-cols-4 gap-4">
                     <DroppableColumn
                       status="todo"
                       tasks={todoTasks}
@@ -213,6 +214,16 @@ export function ObjectivesBoard({
                       compactView={compactView}
                     />
                     
+                    <DroppableColumn
+                      status="freeze"
+                      tasks={frozenTasks}
+                      title="Gelé"
+                      color="bg-purple-400"
+                      icon="🧊"
+                      onEditTask={onEditTask}
+                      compactView={compactView}
+                    />
+                    
                     <DroppableColumn
                       status="done"
                       tasks={completedTasks}