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/radio-button/radio-button.component.ts

@@ -10,7 +10,6 @@ let nextId = 0;
 @Component({
   selector: "bit-radio-button",
   templateUrl: "radio-button.component.html",
-  standalone: true,
   imports: [FormControlModule, RadioInputComponent],
 })
 export class RadioButtonComponent {

libs/components/src/radio-button/radio-group.component.ts

@@ -13,7 +13,6 @@ let nextId = 0;
 @Component({
   selector: "bit-radio-group",
   templateUrl: "radio-group.component.html",
-  standalone: true,
   imports: [NgTemplateOutlet, I18nPipe],
 })
 export class RadioGroupComponent implements ControlValueAccessor {

libs/components/src/radio-button/radio-input.component.ts

@@ -11,7 +11,6 @@ let nextId = 0;
   selector: "input[type=radio][bitRadio]",
   template: "",
   providers: [{ provide: BitFormControlAbstraction, useExisting: RadioInputComponent }],
-  standalone: true,
 })
 export class RadioInputComponent implements BitFormControlAbstraction {
   @HostBinding("attr.id") @Input() id = `bit-radio-input-${nextId++}`;