feat: add total device count

src/components/station-card.vue

@@ -32,6 +32,13 @@ const offlineDeviceCount = computed(() => {
   });
   return count;
 });
+const deviceCount = computed(() => {
+  let count = 0;
+  Object.values(DeviceType).forEach((deviceType) => {
+    count += stationDevices.value[deviceType].length;
+  });
+  return count;
+});
 const devicAlarmCount = computed(() => {
   let count = 0;
   Object.values(DeviceType).forEach((deviceType) => {
@@ -116,7 +123,7 @@ const theme = useThemeVars();
               <span class="font-xx-small" :class="[online ? 'clickable' : '']" @click="openOfflineDeviceTreeModal">离线设备</span>
             </template>
             <template #default>
-              <span class="font-medium">{{ offlineDeviceCount }}</span>
+              <span class="font-medium">{{ offlineDeviceCount }}/{{ deviceCount }}</span>
             </template>
             <template #suffix>
               <span class="font-xx-small">台</span>