improvement: use type 'password' instead of text for client secret (#5262)

Co-authored-by: Nkyle shockey <kyleshockey@gmail.com>

src/core/components/auth/oauth2.jsx

@@ -190,7 +190,7 @@ export default class Oauth2 extends React.Component {
                            : <Col tablet={10} desktop={10}>
                                <InitializedInput id="client_secret"
                                       initialValue={ this.state.clientSecret }
-                                      type="text"
+                                      type="password"
                                       data-name="clientSecret"
                                       onChange={ this.onInputChange }/>
                              </Col>