Fix error messages

client/src/app/+search/search.component.ts

@@ -98,7 +98,7 @@ export class SearchComponent implements OnInit, OnDestroy {
           this.search()
         },
 
-        error: err => this.notifier.error(err.text)
+        error: err => this.notifier.error(err.message)
       })
 
     this.userService.getAnonymousOrLoggedUser()

client/src/app/+videos/+video-watch/shared/comment/video-comment-add.component.ts

@@ -148,7 +148,7 @@ export class VideoCommentAddComponent extends FormReactive implements OnChanges,
       error: err => {
         this.addingComment = false
 
-        this.notifier.error(err.text)
+        this.notifier.error(err.message)
       }
     })
   }

client/src/app/core/auth/auth.service.ts

@@ -97,7 +97,7 @@ export class AuthService {
             let errorMessage = err.message
 
             if (err.status === HttpStatusCode.FORBIDDEN_403) {
-              errorMessage = $localize`Cannot retrieve OAuth Client credentials: ${err.text}.
+              errorMessage = $localize`Cannot retrieve OAuth Client credentials: ${err.message}.
 Ensure you have correctly configured PeerTube (config/ directory), in particular the "webserver" section.`
             }