fix(web): avoid transparent pixels from rounded-full during profile picture capture (#25950)

The cropContainer has rounded-full class which creates transparent
corners when captured by domtoimage.toBlob(). Override border-radius
and border to 0/none during capture to produce a clean square image.

Co-authored-by: Aditya Gaurav <aditya-ai-architect@users.noreply.github.com>

web/src/lib/modals/ProfileImageCropperModal.svelte

@@ -61,9 +61,14 @@
       const containerSize = cropContainer.offsetWidth;
 
       // Capture the crop container which maintains 1:1 aspect ratio
+      // Override border-radius and border to avoid transparent corners from rounded-full
       const blob = await domtoimage.toBlob(cropContainer, {
         width: containerSize,
         height: containerSize,
+        style: {
+          borderRadius: '0',
+          border: 'none',
+        },
       });
 
       if (await hasTransparentPixels(blob)) {