Remove graph subtext and move to footer

dashboard/src/components/GraphItem.vue

@@ -21,6 +21,7 @@ let yscaleUnit = null;
 const props = defineProps({
   title: String,
   subtext: String,
+  footer: String,
   period: Object, // { hours, format, tooltpFormat }
   yscale: String, // cpu, memory
   memory: Number,
@@ -307,6 +308,7 @@ defineExpose({
       <canvas ref="graphNode"></canvas>
       <div ref="tooltipElem" class="graphs-tooltip"></div>
     </div>
+    <div class="footer">{{ footer }}</div>
   </div>
 </template>
 
@@ -322,6 +324,11 @@ defineExpose({
   height: 160px;
 }
 
+.footer {
+  text-align: center;
+  font-weight: bold;
+}
+
 </style>
 
 <style>