feat: update ExtensionCard variant to outlined and adjust InstalledPluginsTab layout for better responsiveness

dashboard/src/components/shared/ExtensionCard.vue

@@ -124,6 +124,7 @@ const viewChangelog = () => {
     elevation="0"
     height="100%"
     :ripple="false"
+    variant="outlined"
     :style="{
       position: 'relative',
       backgroundColor:

dashboard/src/views/extension/InstalledPluginsTab.vue

@@ -267,6 +267,7 @@ const openPluginDetail = (extension) => {
                 <v-row>
                     <v-col
                       cols="12"
+                      md="6"
                       v-for="extension in filteredPlugins"
                       :key="extension.name"
                       class="pb-2"