Add queue statistics

src/components/Footer.vue

@@ -39,10 +39,24 @@
         class="mx-2"
         v-if="!phoneLayout"
       />
-      <div class="icon-label">
-        <v-icon>mdi-nas</v-icon>
-        {{ info.free_space_on_disk | formatSize }}
-      </div>
+      <v-tooltip top>
+        <template v-slot:activator="{ on }">
+          <div
+            class="icon-label"
+            v-on="on"
+          >
+            <v-icon>mdi-nas</v-icon>
+            {{ info.free_space_on_disk | formatSize }}
+          </div>
+        </template>
+        <span>
+          Queued I/O jobs: {{ info.queued_io_jobs }}
+        </span>
+        <br>
+        <span>
+          Avg queue time: {{ info.average_time_queue }} ms
+        </span>
+      </v-tooltip>
       <v-divider
         vertical
         class="mx-2"