fix: add overflow to attachment grid

src/components/common/messaging/attachments/Grid.tsx

@@ -9,6 +9,7 @@ const Grid = styled.div<{ width: number; height: number }>`
     --height: ${(props) => props.height}px;
 
     display: grid;
+    overflow: hidden;
     aspect-ratio: ${(props) => props.width} / ${(props) => props.height};
 
     max-width: min(var(--width), var(--attachment-max-width));