Remove standalone true from platform and UIF (#15032)

Remove standalone: true from every instance since it's the default as of Angular 19.

libs/components/src/tabs/shared/tab-header.component.ts

@@ -10,6 +10,5 @@ import { Component } from "@angular/core";
       "tw-h-16 tw-ps-4 tw-bg-background-alt tw-flex tw-items-end tw-border-0 tw-border-b tw-border-solid tw-border-secondary-300",
   },
   template: `<ng-content></ng-content>`,
-  standalone: true,
 })
 export class TabHeaderComponent {}

libs/components/src/tabs/shared/tab-list-container.directive.ts

@@ -8,6 +8,5 @@ import { Directive } from "@angular/core";
   host: {
     class: "tw-inline-flex tw-flex-wrap tw-leading-5",
   },
-  standalone: true,
 })
 export class TabListContainerDirective {}

libs/components/src/tabs/shared/tab-list-item.directive.ts

@@ -9,7 +9,6 @@ import { Directive, ElementRef, HostBinding, Input } from "@angular/core";
  */
 @Directive({
   selector: "[bitTabListItem]",
-  standalone: true,
 })
 export class TabListItemDirective implements FocusableOption {
   @Input() active: boolean;