feat: enhance Sidebar and TransactionTable components with improved accessibility and layout adjustments; add SheetTitle for navigation context and refine padding and width for better responsiveness

components/dashboard/sidebar.tsx

@@ -18,7 +18,7 @@ import {
   LogOut,
 } from "lucide-react";
 import { toast } from "sonner";
-import { Sheet, SheetContent } from "@/components/ui/sheet";
+import { Sheet, SheetContent, SheetTitle } from "@/components/ui/sheet";
 import { useIsMobile } from "@/hooks/use-mobile";
 import { useLocalStorage } from "@/hooks/use-local-storage";
 
@@ -165,6 +165,7 @@ export function Sidebar({ open, onOpenChange }: SidebarProps) {
     return (
       <Sheet open={open} onOpenChange={onOpenChange}>
         <SheetContent side="left" className="w-64 p-0">
+          <SheetTitle className="sr-only">Navigation</SheetTitle>
           <div className="flex flex-col h-full">
             <SidebarContent
               showHeader