Move autoUpdate setup to a method

Author: lsouoliveira

lib/ruby_ui/dropdown_menu/dropdown_menu_controller.js

@@ -23,11 +23,8 @@ export default class extends Controller {
   connect() {
     this.boundHandleKeydown = this.#handleKeydown.bind(this); // Bind the function so we can remove it later
     this.selectedIndex = -1;
-    this.autoUpdateCleanup = autoUpdate(
-      this.triggerTarget,
-      this.contentTarget,
-      this.#computeTooltip.bind(this),
-    );
+
+    this.#setupAutoUpdate();
   }
 
   disconnect() {
@@ -36,6 +33,14 @@ export default class extends Controller {
     }
   }
 
+  #setupAutoUpdate() {
+    this.autoUpdateCleanup = autoUpdate(
+      this.triggerTarget,
+      this.contentTarget,
+      this.#computeTooltip.bind(this),
+    );
+  }
+
   #computeTooltip() {
     computePosition(this.triggerTarget, this.contentTarget, {
       placement: this.optionsValue.placement || "top",