feat: enhance KanbanPageClient and KeyboardShortcuts with new functionality

- Added `toggleFontSize` and `handleToggleDueDateFilter` to `KanbanPageClient` for improved user control over font size and due date visibility.
- Replaced `useKeyboardShortcuts` with `useGlobalKeyboardShortcuts` for better shortcut management across components.
- Updated keyboard shortcuts in `KeyboardShortcutsContext` to include new actions for toggling objectives, due date filters, and font size.
- Refined `KeyboardShortcutsModal` layout for better usability and consistency.
- Removed deprecated `useKeyboardShortcuts` hook to streamline codebase.

src/contexts/KeyboardShortcutsContext.tsx

@@ -23,13 +23,13 @@ const PAGE_SHORTCUTS: PageShortcuts = {
       category: 'Navigation'
     },
     {
-      keys: ['Cmd', 'Ctrl', 'D'],
+      keys: ['Shift', 'Q'],
       description: 'Basculer le thème',
       category: 'Apparence'
     },
     {
-      keys: ['Cmd', 'Ctrl', 'T'],
-      description: 'Changer de thème sombre',
+      keys: ['Shift', 'W'],
+      description: 'Faire tourner les thèmes dark',
       category: 'Apparence'
     },
     {
@@ -42,7 +42,7 @@ const PAGE_SHORTCUTS: PageShortcuts = {
   // Dashboard
   '/': [
     {
-      keys: ['Cmd', 'Ctrl', 'K'],
+      keys: ['Shift', 'K'],
       description: 'Vers Kanban',
       category: 'Navigation'
     }
@@ -51,7 +51,7 @@ const PAGE_SHORTCUTS: PageShortcuts = {
   // Kanban
   '/kanban': [
     {
-      keys: ['Cmd', 'Ctrl', 'N'],
+      keys: ['Shift', 'N'],
       description: 'Créer une nouvelle tâche',
       category: 'Actions'
     },
@@ -61,15 +61,30 @@ const PAGE_SHORTCUTS: PageShortcuts = {
       category: 'Vue'
     },
     {
-      keys: ['Cmd', 'Ctrl', 'F'],
+      keys: ['Shift', 'F'],
       description: 'Ouvrir les filtres',
       category: 'Filtres'
     },
     {
-      keys: ['Cmd', 'Ctrl', 'S'],
+      keys: ['Shift', 'S'],
       description: 'Basculer les swimlanes',
       category: 'Vue'
     },
+    {
+      keys: ['Shift', 'O'],
+      description: 'Basculer les objectifs',
+      category: 'Vue'
+    },
+    {
+      keys: ['Shift', 'D'],
+      description: 'Filtrer par date de fin',
+      category: 'Filtres'
+    },
+    {
+      keys: ['Shift', 'Z'],
+      description: 'Basculer la taille de police',
+      category: 'Vue'
+    },
     {
       keys: ['Tab'],
       description: 'Navigation entre colonnes',
@@ -95,7 +110,7 @@ const PAGE_SHORTCUTS: PageShortcuts = {
       category: 'Navigation'
     },
     {
-      keys: ['Cmd', 'Ctrl', 'T'],
+      keys: ['Shift', 'H'],
       description: 'Aller à aujourd\'hui',
       category: 'Navigation'
     },