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/container/container.component.ts

@@ -6,6 +6,5 @@ import { Component } from "@angular/core";
 @Component({
   selector: "bit-container",
   templateUrl: "container.component.html",
-  standalone: true,
 })
 export class ContainerComponent {}