tweak accordion

Author: adolgachev

src/aria/accordion/accordion.ts

@@ -95,9 +95,9 @@ export class AccordionPanel {
     '[id]': '_pattern.id()',
     '[attr.aria-expanded]': 'expanded()',
     '[attr.aria-controls]': '_pattern.controls()',
-    '[attr.aria-disabled]': 'disabled()',
+    '[attr.aria-disabled]': '_pattern.disabled()',
     '[attr.disabled]': 'hardDisabled() ? true : null',
-    '[attr.tabindex]': 'tabindex()',
+    '[attr.tabindex]': '_pattern.tabindex()',
     '(keydown)': '_pattern.onKeydown($event)',
     '(pointerdown)': '_pattern.onPointerdown($event)',
     '(focusin)': '_pattern.onFocus($event)',
@@ -128,9 +128,6 @@ export class AccordionTrigger {
   /** The index of the trigger within its accordion group. */
   readonly index = computed(() => this._pattern.index());
 
-  /** The tabindex of the trigger. */
-  readonly tabindex = computed(() => this._pattern.tabindex());
-
   /**
    * Whether this trigger is completely inaccessible.
    *