feat: déplacer les statistiques dans un modal popup

- Créer un nouveau composant StatsModal pour afficher les statistiques
- Ajouter une icône BarChart3 dans le header à côté du bouton de thème
- Retirer le StatsDashboard de sa position sous le calendrier
- Afficher les statistiques dans un modal au clic sur l'icône

src/components/StatsModal.tsx

@@ -0,0 +1,31 @@
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+} from "@/components/ui/dialog";
+import { StatsDashboard } from "./StatsDashboard";
+import { Note } from "@/services/NotesService";
+import { Todo } from "@/services/TodosService";
+
+interface StatsModalProps {
+  open: boolean;
+  onOpenChange: (open: boolean) => void;
+  notes: Note[];
+  todos: Todo[];
+}
+
+export function StatsModal({ open, onOpenChange, notes, todos }: StatsModalProps) {
+  return (
+    <Dialog open={open} onOpenChange={onOpenChange}>
+      <DialogContent className="max-w-2xl max-h-[80vh] overflow-y-auto">
+        <DialogHeader>
+          <DialogTitle className="text-2xl">Statistiques</DialogTitle>
+        </DialogHeader>
+        <div className="mt-4">
+          <StatsDashboard notes={notes} todos={todos} />
+        </div>
+      </DialogContent>
+    </Dialog>
+  );
+}

src/pages/Index.tsx

@@ -15,7 +15,7 @@ import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, Command
 import { RichTextEditor } from "@/components/RichTextEditor";
 import {
   PlusCircle, Search, User, LogOut, Settings, ChevronDown, Plus, Archive, Trash2,
-  Image as ImageIcon, CheckSquare, FileText, Rss, ExternalLink, RefreshCw, Key, Zap, Paperclip, X, Edit, Calendar as CalendarIcon, Tag as TagIcon, MessageSquare, Send, Check, ChevronsUpDown, Star, Activity, FileDown, LayoutGrid, List, Sparkles
+  Image as ImageIcon, CheckSquare, FileText, Rss, ExternalLink, RefreshCw, Key, Zap, Paperclip, X, Edit, Calendar as CalendarIcon, Tag as TagIcon, MessageSquare, Send, Check, ChevronsUpDown, Star, Activity, FileDown, LayoutGrid, List, Sparkles, BarChart3
 } from "lucide-react";
 import AuthService from "@/services/AuthService";
 import AdminService from "@/services/AdminService";
@@ -42,6 +42,7 @@ import { KanbanBoard } from "@/components/KanbanBoard";
 import { getSmartTagSuggestions } from "@/utils/smartTags";
 import { QuickCaptureWidget } from "@/components/QuickCaptureWidget";
 import { StatsDashboard } from "@/components/StatsDashboard";
+import { StatsModal } from "@/components/StatsModal";
 import { KeyboardShortcutsHelp } from "@/components/KeyboardShortcutsHelp";
 import { useKeyboardShortcuts, type KeyboardShortcut } from "@/hooks/useKeyboardShortcuts";
 
@@ -1093,6 +1094,15 @@ const Index = () => {
                 Nouvelle Note
               </Button>
 
+              <Button
+                variant="ghost"
+                size="icon"
+                onClick={() => setShowStatsDashboard(true)}
+                title="Statistiques"
+              >
+                <BarChart3 className="h-5 w-5" />
+              </Button>
+
               <ModeToggle />
 
               {user && (
@@ -1262,9 +1272,6 @@ const Index = () => {
                 )}
               </CardContent>
             </Card>
-
-            {/* Statistics Dashboard */}
-            <StatsDashboard notes={notes} todos={todos} />
           </div>
 
           {/* Middle Column: Notes or Open Note */}
@@ -3149,6 +3156,14 @@ const Index = () => {
         shortcuts={keyboardShortcuts}
       />
 
+      {/* Statistics Modal */}
+      <StatsModal
+        open={showStatsDashboard}
+        onOpenChange={setShowStatsDashboard}
+        notes={notes}
+        todos={todos}
+      />
+
       {/* Quick Capture Widget */}
       <QuickCaptureWidget onNoteCaptured={loadNotes} />
     </div>