fix lint errors

src/client/js/components/InstallerForm.jsx

@@ -159,7 +159,13 @@ class InstallerForm extends React.Component {
             <input type="hidden" name="_csrf" value={this.props.csrf} />
 
             <div className="input-group mt-4 mb-3 d-flex justify-content-center">
-              <button type="submit" className="btn-fill btn btn-register" id="register" disabled={this.state.isSubmitButtonDisabled} onClick={this.clickHandler}>
+              <button
+                type="submit"
+                className="btn-fill btn btn-register"
+                id="register"
+                disabled={this.state.isSubmitButtonDisabled}
+                onClick={this.clickHandler}
+              >
                 <div className="eff"></div>
                 <span className="btn-label"><i className="icon-user-follow" /></span>
                 <span className="btn-label-text">{ this.props.t('Create') }</span>