perf: memo GridCard, fuse save fns, fix slash tab active color

memento-note/components/sidebar.tsx

@@ -1457,6 +1457,7 @@ export function Sidebar({ className, user }: { className?: string; user?: any })
                     type="button"
                     onClick={handleDailyNoteClick}
                     className="sidebar-inbox-item"
+                    title={t('sidebar.dailyNoteTooltip') || "Ouvrir ou créer la note personnelle pour le journal d'aujourd'hui"}
                   >
                     <div className="w-8 h-8 rounded-full flex items-center justify-center text-sm font-medium border shrink-0 bg-paper dark:bg-white/5 text-muted-ink border-border">
                       <CalendarDays size={14} />