fix: unnecessary form validation and function return type

src/app/header/header.component.ts

@@ -26,7 +26,7 @@ export class HeaderComponent implements OnInit {
   }
 
   public logout(): void {
-    return this.authService.logout();
+    this.authService.logout();
   }
 
   public closeSignInModal(): void {

src/app/services/auth.service.ts

@@ -37,7 +37,7 @@ export class AuthService {
     return false;
   }
 
-  public getExpiration(): void {
+  public getExpiration(): DateTime {
     return DateTime.fromISO(this.userValue.expires_at, { zone: 'Europe/Paris' });
   }
 

src/app/shared/components/signin-modal/signin-modal.component.ts

@@ -29,7 +29,7 @@ export class SignInModalComponent implements OnInit {
           '',
           [Validators.required, Validators.pattern(/^(?=.*[a-z])(?=.*[A-Z])(?=.*[0-9])(?=.*[!@#$%^&*])(?=.{8,})/)],
         ],
-        confirmPassword: ['', [Validators.required, Validators.minLength(8)]],
+        confirmPassword: [''],
       },
       { validator: MustMatch('password', 'confirmPassword') }
     );