$(zap) is not escaped in the tooltip (microsoft#262147)

Author: aeschli

src/vs/workbench/contrib/chat/common/tools/languageModelToolsContribution.ts

@@ -99,7 +99,7 @@ const languageModelToolsExtensionPoint = extensionsRegistry.ExtensionsRegistry.r
 					type: 'boolean'
 				},
 				icon: {
-					markdownDescription: localize('icon', "An icon that represents this tool. Either a file path, an object with file paths for dark and light themes, or a theme icon reference, like `$(zap)`"),
+					markdownDescription: localize('icon', "An icon that represents this tool. Either a file path, an object with file paths for dark and light themes, or a theme icon reference, like `\\$(zap)`"),
 					anyOf: [{
 						type: 'string'
 					},