Replace ngOnChanges with effect in DisabledDirective

Switch DisabledDirective from the OnChanges lifecycle to Angular signal-based reactivity: remove OnChanges/SimpleChanges usage and import effect/input instead. Create an effect that reads the abpDisabled input signal and enables/disables the injected NgControl accordingly, preserving previous behavior while using reactive signals (addresses timing/changes handling referenced in Angular issue).

npm/ng-packs/packages/theme-shared/src/lib/directives/disabled.directive.ts

@@ -1,18 +1,19 @@
-import { Directive, OnChanges, SimpleChanges, inject, input } from '@angular/core';
+import { Directive, effect, inject, input } from '@angular/core';
 import { NgControl } from '@angular/forms';
 
 @Directive({
   selector: '[abpDisabled]',
 })
-export class DisabledDirective implements OnChanges {
+export class DisabledDirective {
   private ngControl = inject(NgControl, { host: true });
 
   readonly abpDisabled = input(false);
 
   // Related issue: https://github.com/angular/angular/issues/35330
-  ngOnChanges({ abpDisabled }: SimpleChanges) {
-    if (this.ngControl.control && abpDisabled) {
-      this.ngControl.control[abpDisabled.currentValue ? 'disable' : 'enable']();
+  private disabledEffect = effect(() => {
+    const disabled = this.abpDisabled();
+    if (this.ngControl.control) {
+      this.ngControl.control[disabled ? 'disable' : 'enable']();
     }
-  }
+  });
 }