Added option to disable google login in the frontend configuration (#3219)

Fix #3220

### Purpose

Right now, both local and google login are enabled, which might confuse
users.

### Changes

1. Introduced googleLogin in environment.default
2. Added googleLogin to dashboard.component
3. Hide the Google Login component in dashboard.component.html if
googleLogin is false

<img width="1470" alt="Bildschirmfoto 2025-01-17 um 17 33 05"
src="https://github.com/user-attachments/assets/18845e12-6aaa-4399-a05f-8c05e3c643ff"
/>

---------

Co-authored-by: Texera <[email protected]>

Author: 2 people

core/gui/src/app/dashboard/component/dashboard.component.html

@@ -148,7 +148,7 @@
           <texera-user-icon></texera-user-icon>
         </ng-container>
         <asl-google-signin-button
-          *ngIf="!isLogin"
+          *ngIf="!isLogin && googleLogin"
           type="standard"
           size="large"
           width="200"></asl-google-signin-button>

core/gui/src/app/dashboard/component/dashboard.component.ts

@@ -17,6 +17,7 @@ import {
   DASHBOARD_USER_QUOTA,
   DASHBOARD_USER_WORKFLOW,
 } from "../../app-routing.constant";
+import { environment } from "../../../environments/environment";
 
 @Component({
   selector: "texera-dashboard",
@@ -28,7 +29,8 @@ export class DashboardComponent implements OnInit {
   @ViewChild(HubComponent) hubComponent!: HubComponent;
 
   isAdmin: boolean = this.userService.isAdmin();
-  isLogin: boolean = this.userService.isLogin();
+  isLogin = this.userService.isLogin();
+  googleLogin: boolean = environment.googleLogin;
   displayForum: boolean = true;
   displayNavbar: boolean = true;
   isCollpased: boolean = false;

core/gui/src/environments/environment.default.ts

@@ -26,13 +26,17 @@ export const defaultEnvironment = {
   /**
    * whether user system is enabled
    */
-  userSystemEnabled: false,
+  userSystemEnabled: true,
 
   /**
    * whether local login is enabled
    */
   localLogin: true,
 
+  /**
+   * whether google login is enabled
+   */
+  googleLogin: true,
   /**
    * whether invite only is enabled
    */