style: adjust KanbanFilters layout for improved responsiveness

- Modified the grid layout in `KanbanFilters` to use specific column widths, enhancing the overall UI structure.
- This change optimizes the display of filters, ensuring better alignment and usability across different screen sizes.

src/components/kanban/KanbanFilters.tsx

@@ -287,7 +287,7 @@ export function KanbanFilters({ filters, onFiltersChange, hiddenStatuses: propsH
         {/* Filtres étendus */}
         <div className="mt-4 border-t border-[var(--border)]/50 pt-4">
           {/* Layout optimisé : 3 colonnes avec Tags très large à droite */}
-          <div className="grid grid-cols-1 xl:grid-cols-[auto_minmax(0,500px)_3fr] gap-4 lg:gap-6 items-start">
+          <div className="grid grid-cols-1 xl:grid-cols-[280px_1fr_300px] gap-4 lg:gap-6 items-start">
             {/* Colonne 1 : Priorités + Généraux */}
             <div className="space-y-4">
               <PriorityFilters