fix: Use textContent for code block conversion to prevent content loss

Co-authored-by: aider (gemini/gemini-2.5-pro) <aider@aider.chat>

webclient/src/Article.js

@@ -69,8 +69,8 @@ function Article({ cache }) {
 			if (pConv.includes(key)) {
 				return (
 					<React.Fragment key={key}>
-						{v.innerHTML.split('\n\n').map((x, i) =>
+						{v.textContent.split('\n\n').map((x, i) =>
-							<p key={i} dangerouslySetInnerHTML={{ __html: x }} />
+							<p key={i}>{x}</p>
 						)}
 					</React.Fragment>
 				);