fix(web): prevent horizontal overflow at 768px on home dashboard (TEC-3089)

Add overflow-x-clip on the public layout and home page root wrappers,
plus min-w-0 / overflow-hidden guards on the ticker strip containers.
The ticker strip renders a whitespace-nowrap w-max flex row that can
push documentElement.scrollWidth past clientWidth at narrow viewports;
constraining its parent prevents the Playwright regression at 768p.

Co-Authored-By: Paperclip <noreply@paperclip.ing>

apps/web/app/[locale]/(public)/layout.tsx

@@ -95,9 +95,9 @@ export default function PublicLayout({ children }: { children: React.ReactNode }
   ];
 
   return (
-    <div className="min-h-screen bg-background">
+    <div className="min-h-screen w-full overflow-x-clip bg-background">
       {/* Ticker strip — biến động 7d top 8 quận */}
-      <div className="h-ticker-bar border-b border-border bg-background-elevated">
+      <div className="h-ticker-bar w-full min-w-0 overflow-hidden border-b border-border bg-background-elevated">
         <TickerStrip items={tickerItems} />
       </div>
       <header