fix(36102): fix extra new line in Organize Imports

Organize Imports was inserting extra newline.

Fixes microsoft#36102

Author: sacgrover

src/services/textChanges.ts

@@ -889,7 +889,7 @@ namespace ts.textChanges {
                 : format(change.node);
             // strip initial indentation (spaces or tabs) if text will be inserted in the middle of the line
             const noIndent = (options.preserveLeadingWhitespace || options.indentation !== undefined || getLineStartPositionForPosition(pos, sourceFile) === pos) ? text : text.replace(/^\s+/, "");
-            return (options.prefix || "") + noIndent + (options.suffix || "");
+            return (options.prefix || "") + noIndent + (noIndent.endsWith(options.suffix) ? "" : (options.suffix || ""));
         }
 
         function getFormatCodeSettingsForWriting({ options }: formatting.FormatContext, sourceFile: SourceFile): FormatCodeSettings {