make rules optional

src/server/editorServices.ts

@@ -1580,6 +1580,7 @@ namespace ts.server {
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyParenthesis: false,
                 InsertSpaceAfterOpeningAndBeforeClosingNonemptyBrackets: false,
                 InsertSpaceAfterOpeningAndBeforeClosingTemplateStringBraces: false,
+                InsertSpaceAfterOpeningAndBeforeClosingJsxExpressionBraces: false,
                 PlaceOpenBraceOnNewLineForFunctions: false,
                 PlaceOpenBraceOnNewLineForControlBlocks: false,
             });