add a check to each auth context to mark if it supports persisting the login

src/Umbraco.Web.UI.Client/apps/auth/src/auth-legacy.context.ts

@@ -2,6 +2,7 @@ import { LoginRequestModel, IUmbAuthContext, LoginResponse } from './types.js';
 
 export class UmbAuthLegacyContext implements IUmbAuthContext {
 	readonly #AUTH_URL = '/umbraco/backoffice/umbracoapi/authentication/postlogin';
+	readonly supportsPersistLogin = true;
 
 	login(data: LoginRequestModel): Promise<LoginResponse> {
 		throw new Error('Method not implemented.');

src/Umbraco.Web.UI.Client/apps/auth/src/auth.context.ts

@@ -3,6 +3,7 @@ import { LoginRequestModel, IUmbAuthContext } from './types.js';
 
 export class UmbAuthContext implements IUmbAuthContext {
 	readonly #AUTH_URL = '/umbraco/management/api/v1/security/back-office';
+	readonly supportsPersistLogin = false;
 
 	#authRepository = new UmbAuthRepository(this.#AUTH_URL);
 

src/Umbraco.Web.UI.Client/apps/auth/src/login.element.ts

@@ -105,9 +105,11 @@ export default class UmbLoginElement extends LitElement {
 									required-message="Password is required"></uui-input-password>
 							</uui-form-layout-item>
 
-							<uui-form-layout-item>
-								<uui-checkbox name="persist" label="Remember me">Remember me</uui-checkbox>
-							</uui-form-layout-item>
+							${this.#authContext.supportsPersistLogin
+								? html`<uui-form-layout-item>
+										<uui-checkbox name="persist" label="Remember me">Remember me</uui-checkbox>
+								  </uui-form-layout-item>`
+								: nothing}
 
 							<uui-form-layout-item>${this.#renderErrorMessage()}</uui-form-layout-item>
 

src/Umbraco.Web.UI.Client/apps/auth/src/types.ts

@@ -6,6 +6,7 @@ export type LoginRequestModel = {
 
 export interface IUmbAuthContext {
 	login(data: LoginRequestModel): Promise<LoginResponse>;
+	supportsPersistLogin: boolean;
 }
 
 export type LoginResponse = {