Set markdown-body RTL for Arabic text

app/components/markdown.tsx

@@ -195,6 +195,7 @@ export function Markdown(
         fontSize: `${props.fontSize ?? 14}px`,
         height: getSize(renderedHeight.current),
         width: getSize(renderedWidth.current),
+        direction: /[\u0600-\u06FF]/.test(props.content) ? "rtl" : "ltr",
       }}
       ref={mdRef}
       onContextMenu={props.onContextMenu}