change spinner to component

apps/app/src/components/InvitedForm.tsx

@@ -7,6 +7,8 @@ import { apiv3Post } from '~/client/util/apiv3-client';
 
 import { useCurrentUser } from '../stores/context';
 
+import { LoadingSpinnerPulse } from './LoadingSpinnerPulse';
+
 
 export type InvitedFormProps = {
   invitedFormUsername: string,
@@ -141,7 +143,13 @@ export const InvitedForm = (props: InvitedFormProps): JSX.Element => {
         <div className="input-group justify-content-center d-flex mt-4">
           <button type="submit" className="btn btn-fill" id="register" disabled={isLoading}>
             <div className="eff"></div>
-            <span className="btn-label"><i className={isLoading ? 'fa fa-spinner fa-pulse me-1' : 'icon-user-follow'} /></span>
+            <span className="btn-label">
+              {isLoading ? (
+                <LoadingSpinnerPulse />
+              ) : (
+                <i className="icon-user-follow" />
+              )}
+            </span>
             <span className="btn-label-text">{t('Create')}</span>
           </button>
         </div>