fix: Reset sidebar to show expanded list when refreshing the page (#13229)

Previously, the sidebar remembered which section was expanded using
session storage. This caused a confusing experience where the sidebar
would collapse on page refresh.

With this update, the session storage dependency is removed, and the
sidebar would expand based on the current active page, which gives a
cleaner UX.

app/javascript/dashboard/components-next/sidebar/Sidebar.vue

@@ -1,12 +1,11 @@
 <script setup>
-import { h, computed, onMounted } from 'vue';
+import { h, ref, computed, onMounted } from 'vue';
 import { provideSidebarContext } from './provider';
 import { useAccount } from 'dashboard/composables/useAccount';
 import { useKbd } from 'dashboard/composables/utils/useKbd';
 import { useMapGetter } from 'dashboard/composables/store';
 import { useStore } from 'vuex';
 import { useI18n } from 'vue-i18n';
-import { useStorage } from '@vueuse/core';
 import { useSidebarKeyboardShortcuts } from './useSidebarKeyboardShortcuts';
 import { vOnClickOutside } from '@vueuse/components';
 import { emitter } from 'shared/helpers/mitt';
@@ -55,14 +54,7 @@ const toggleShortcutModalFn = show => {
 
 useSidebarKeyboardShortcuts(toggleShortcutModalFn);
 
-// We're using localStorage to store the expanded item in the sidebar
-// This helps preserve context when navigating between portal and dashboard layouts
-// and also when the user refreshes the page
-const expandedItem = useStorage(
-  'next-sidebar-expanded-item',
-  null,
-  sessionStorage
-);
+const expandedItem = ref(null);
 
 const setExpandedItem = name => {
   expandedItem.value = expandedItem.value === name ? null : name;

app/javascript/dashboard/components-next/sidebar/SidebarGroup.vue

@@ -1,5 +1,5 @@
 <script setup>
-import { computed, onMounted, nextTick } from 'vue';
+import { computed, onMounted, watch, nextTick } from 'vue';
 import { useSidebarContext } from './provider';
 import { useRoute, useRouter } from 'vue-router';
 import Policy from 'dashboard/components/policy.vue';
@@ -126,6 +126,16 @@ onMounted(async () => {
     setExpandedItem(props.name);
   }
 });
+
+watch(
+  hasActiveChild,
+  hasNewActiveChild => {
+    if (hasNewActiveChild && !isExpanded.value) {
+      setExpandedItem(props.name);
+    }
+  },
+  { once: true }
+);
 </script>
 
 <!-- eslint-disable-next-line vue/no-root-v-if -->