Avoid much flickering on disk graph item hover

dashboard/src/components/DiskUsageItem.vue

@@ -144,11 +144,11 @@ onUnmounted(() => {
 
       <div v-if="percent < 100" style="text-align: center; margin-top: 10px;">Calculating speed and disk usage ... {{ parseInt(percent) }}%</div>
       <div v-else>
-        <table style="width: 100%">
+        <table style="width: 100%;table-layout: fixed">
           <tr v-for="content in contents" :key="content.id" @mouseover="highlight = content.id" :class="{ highlight: highlight === content.id }">
             <td style="width: 20px"><div class="content-color-indicator" :style="{ backgroundColor: content.color }"></div></td>
-            <td>{{ content.label }}</td>
-            <td style="text-align: right">{{ prettyDecimalSize(content.usage) }}</td>
+            <td style="white-space: nowrap; overflow: hidden; text-overflow: ellipsis;">{{ content.label }}</td>
+            <td style="text-align: right; white-space: nowrap;">{{ prettyDecimalSize(content.usage) }}</td>
           </tr>
         </table>
       </div>