Refactor auth module.

- Switch from form to text field for passphrase input.
- Refactor error dialog format.
- Send dialog on incorrect parsing of private key.
- Refactor block sync service to take parameters.

src/app/_interceptors/error.interceptor.ts

@@ -16,16 +16,13 @@ export class ErrorInterceptor implements HttpInterceptor {
 
   intercept(request: HttpRequest<unknown>, next: HttpHandler): Observable<HttpEvent<unknown>> {
     return next.handle(request).pipe(catchError((err: HttpErrorResponse) => {
-      const data = {
+      this.errorDialogService.openDialog({
         message: err.error.message || err.statusText,
-        reason: err && err.error && err.error.reason ? err.error.reason : '',
         status: err.status
-      };
-      this.errorDialogService.openDialog(data);
+      });
       if ([401, 403].indexOf(err.status) !== -1) {
         location.reload(true);
       }
-      // const error = err.error.message || err.statusText;
       return throwError(err);
     }));
   }