Added word boundary on tsserver regex (#101598)

Adds a word boundary on the tsserver regex so that it doens't get confused by other file names.

extensions/typescript-language-features/src/tsServer/serverError.ts

@@ -79,7 +79,7 @@ export class TypeScriptServerError extends Error {
 		if (!message) {
 			return '';
 		}
-		const regex = /(tsserver)?(\.(?:ts|tsx|js|jsx)(?::\d+(?::\d+)?)?)\)?$/igm;
+		const regex = /(\btsserver)?(\.(?:ts|tsx|js|jsx)(?::\d+(?::\d+)?)?)\)?$/igm;
 		let serverStack = '';
 		while (true) {
 			const match = regex.exec(message);