Fix NPE of CountUp

Author: sheepzh

src/app/components/common/number-grow.ts

@@ -5,9 +5,10 @@
  * https://opensource.org/licenses/MIT
  */
 
+import type { Ref } from "vue"
+
 import { defineComponent, h, onMounted, ref, watch } from "vue"
 import { CountUp } from "countup.js"
-import type { Ref } from "vue"
 
 const _default = defineComponent({
     name: "NumberGrow",

src/app/components/dashboard/components/indicator/index.ts

@@ -123,8 +123,10 @@ function renderBrowsingMinute(browsingMinute: number) {
 }
 
 function renderMostUse(most2Hour: number) {
-    const startHour = most2Hour * 2
-    const endHour = most2Hour * 2 + 2
+    const [startHour, endHour] = most2Hour === undefined || isNaN(most2Hour)
+        ? [0, 0]
+        : [most2Hour * 2, most2Hour * 2 + 2]
+
     const duration = 2.25
     return h('div',
         { class: 'indicator-label' },