Fix toggler_behavior to not update intial state

Add changelog

app/assets/javascripts/behaviors/toggler_behavior.js

@@ -16,7 +16,7 @@ $(() => {
     const $collapseIcon = $container.find('.js-sidebar-collapse');
     const $expandIcon = $container.find('.js-sidebar-expand');
 
-    if (isExpanded) {
+    if (isExpanded && !toggleState) {
       $container.data('is-expanded', false);
       $collapseIcon.addClass('hidden');
       $expandIcon.removeClass('hidden');

changelogs/unreleased/224510-replace-fa-chevron-up-with-gitlab-svg-chevron-up-icon.yml

+---
+title: Replace fa-chevron-up with GitLab SVG icon
+merge_request: 46118
+author:
+type: changed