fix(mobile): do not mutate SVG attributes, only replace qr-placeholder group

apps/mobile/src/app/menu/qr.tsx

@@ -45,22 +45,19 @@ export default function QrScreen() {
   const currentSvgRaw = MOBILE_SVG_TEMPLATES[selectedKey] || MOBILE_SVG_TEMPLATES["qr-4"] || Object.values(MOBILE_SVG_TEMPLATES)[0] || "";
 
   // Inject the live QR code image directly into the SVG's #qr-placeholder group
+  // SVG içeriğine başka hiçbir şey dokunulmaz, sadece #qr-placeholder replace edilir
   function buildSvgWithQr(svgRaw: string, pngBase64: string): string {
     const qrImgTag = `<g id="qr-placeholder" transform="translate(90, 215)">
       <rect width="220" height="220" rx="20" fill="#FFFFFF"/>
       <image href="data:image/png;base64,${pngBase64}" x="10" y="10" width="200" height="200" preserveAspectRatio="xMidYMid meet"/>
     </g>`;
-    // Replace the entire qr-placeholder group
-    const replaced = svgRaw.replace(
+    return svgRaw.replace(
       /<g id="qr-placeholder"[\s\S]*?<\/g>/,
       qrImgTag
     );
-    // Also ensure the SVG scales properly by setting width/height to 100%
-    return replaced
-      .replace(/width="400"/, 'width="100%"')
-      .replace(/height="650"/, 'height="100%"');
   }
 
+
   useEffect(() => {
     (async () => {
       const activeRest = await getActiveRestaurant();