fix: 多遍歌词的曲子，没有repeat标记，则手动添加repeat标记

src/helpers/formateMusic.ts

@@ -1555,7 +1555,7 @@ const customizationXml = (xmlParse: any) => {
 		const hasRepeat = xmlParse.querySelectorAll('repeat').length > 0;
 		if (!hasRepeat) {
 			const parts = xmlParse.querySelectorAll('score-partwise>part')
-			if (parts.length > 1) {
+			if (parts.length) {
 				for (const part of parts) {
 					const currentMeasures = part.querySelectorAll('measure').length ? Array.from(part.querySelectorAll('measure')) : [];
 					const lastMeasure: any = currentMeasures.last();