Fix #3653: insertContentTool to handle appending content when origina…#4380

Ruakij wants to merge 1 commit intoRooCodeInc:mainRooCodeInc/Roo-Code:mainfrom

Ruakij:fix/3653/insert_content-adds-extra-blank-line-with-sequential-operationsRuakij/Roo-Code:fix/3653/insert_content-adds-extra-blank-line-with-sequential-operationsCopy head branch name to clipboard