fix: 网贷账单，新增时，总利息改必填。

src/views/invest/onlineLendHistory/index.vue

@@ -281,6 +281,7 @@ const data = reactive({
     installmentAmount: [{ required: true, message: '借款金额不能为空', trigger: 'blur' }],
     installmentDate: [{ required: true, message: '借款日期不能为空', trigger: 'blur' }],
     period: [{ required: true, message: '借款期数不能为空', trigger: 'blur' }],
+    totalInterest: [{ required: true, message: '总利息不能为空', trigger: 'blur' }],
     state: [{ required: true, message: '账户状态不能为空', trigger: 'change' }],
     balance: [{ required: true, message: '余额不能为空', trigger: 'blur' }]
   },