fix(device): online duration conversion

src/views/device/detail/components/DeviceRuntime/OnlineDuration.vue

@@ -115,7 +115,7 @@ export default {
       return [
         { value: duration / (24 * 3600) | 0, unit: '天' },
         { value: (duration % (24 * 3600)) / 3600 | 0, unit: '小时' },
-        { value: (duration / 3600) / 60 | 0, unit: '分' },
+        { value: (duration % 3600) / 60 | 0, unit: '分钟' },
         { value: duration % 60, unit: '秒' }
       ].reduce((curr, { value, unit }) => value ? `${curr}${value}${unit}` : curr, '')
     },