style: remove unnecessary function whitespace

Remove the unnecessary whitespace between the function name or the
'function' keyword and the opening parenthesis.

src/features/sidebar/components/Sidebar.vue

@@ -26,7 +26,7 @@ const props = defineProps({
 });
 const emit = defineEmits(['toggleExpanded']);
 
-const toggleSidebar = function toggleSidebar () {
+const toggleSidebar = function toggleSidebar() {
     emit('toggleExpanded');
 };
 </script>

src/features/sidebar/components/SidebarExpandButton.vue

@@ -19,7 +19,7 @@ import Icon from '@/features/icons/components/Icon.vue';
 
 const emit = defineEmits(['click']);
 
-const click = function click (event) {
+const click = function click(event) {
     emit('click', event);
 };
 </script>