feat(ui): make dashboard responsive for iPhone and mobile devices

- Add Sheet primitive component for mobile drawers
- Add MobileNav with hamburger menu for dashboard layout
- Hide desktop sidebars on mobile; show mobile header
- Make dashboard header responsive with stacked layout on small screens
- Hide selector text on mobile, show icons only
- Convert fixed-width filters to responsive widths (CFDI, Clientes, Admin, Documentos, Alertas)
- Cap dialog widths to 95vw on mobile (CFDI viewer, Documentos, Reportes, Contribuyentes, Facturación)
- Make calendar grid smaller and use single-letter weekdays on mobile
- Update viewport to include viewport-fit=cover for Samsung safe areas

apps/web/app/(dashboard)/cfdi/page.tsx

@@ -967,7 +967,7 @@ export default function CfdiPage() {
         <Card>
           <CardContent className="p-4">
             <div className="flex flex-wrap gap-4">
-              <div className="flex gap-2 w-[300px]">
+              <div className="flex gap-2 w-full sm:w-[300px]">
                 <Input
                   placeholder="Buscar por UUID, RFC o nombre..."
                   value={searchTerm}
@@ -1012,7 +1012,7 @@ export default function CfdiPage() {
                     })
                   }
                 >
-                  <SelectTrigger className="w-[200px]">
+                  <SelectTrigger className="w-full sm:w-[200px]">
                     <SelectValue placeholder="Tipo de Comprobante" />
                   </SelectTrigger>
                   <SelectContent>