Fix the width of the containers to be consistent

Author: msujaws

src/App.tsx

@@ -348,7 +348,7 @@ function App() {
       </header>
 
       {/* Main content */}
-      <main className="container mx-auto px-4 py-6">
+      <main className="container mx-auto py-6">
         {/* Filter bar */}
         <div className="mb-6">
           <FilterBar

src/components/Board/Board.tsx

@@ -508,7 +508,7 @@ export function Board({
         role="main"
         aria-label="Kanban Board"
         aria-busy={isLoading}
-        className="min-h-screen bg-bg-primary p-6"
+        className="min-h-screen bg-bg-primary py-6"
       >
         {/* Clear confirmation banner */}
         {showClearConfirmation && (