refactor(sidebar) : re-catégorisation en 3 groupes (Général / Outils / Administration)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

frontend/i18n/locales/fr.json

@@ -349,21 +349,29 @@
     }
   },
   "sidebar": {
-    "myTasks": "Mes tâches",
     "general": {
-      "section": "Gestion de projet",
+      "section": "Général",
       "dashboard": "Tableau de bord",
       "myTasks": "Mes tâches",
       "projects": "Projets",
       "timeTracking": "Suivi de temps",
-      "mail": "Messagerie"
+      "mail": "Messagerie",
+      "myAbsences": "Mes absences"
+    },
+    "tools": {
+      "section": "Outils"
+    },
+    "project": {
+      "kanban": "Kanban",
+      "groups": "Groupes",
+      "archives": "Archives"
     },
     "admin": {
       "section": "Administration",
       "teamAbsences": "Absences équipe",
-      "administration": "Administration",
       "directory": "Répertoire",
-      "reporting": "Rapports"
+      "reporting": "Rapports",
+      "administration": "Administration"
     }
   },
   "reporting": {