fix(@gms/gms-plugin-billexpand): 常用审批意见判断是否是纯空格字符串

develop/@gms/gms-plugin-billexpand/src/control/approval-user-control/approval-user-control.vue

@@ -286,7 +286,7 @@ export default {
       if (this.currentEditSuggestion.id) {
         await this.update()
       }
-      else if (this.currentEditSuggestion.spyj) {
+      else if (this.currentEditSuggestion.spyj && this.currentEditSuggestion.spyj.trim()) {
         await this.add()
       }
       this.currentEditSuggestion = {}