feat: Changes security dialog button to toggle dialog.

react/features/security/actions.js

 // @flow
 
-import { openDialog } from '../base/dialog';
+import { toggleDialog } from '../base/dialog';
 
 import { SecurityDialog } from './components/security-dialog';
 
 /**
- * Action that triggers opening the security options dialog.
+ * Action that triggers toggle of the security options dialog.
  *
  * @returns {Function}
  */
-export function openSecurityDialog() {
+export function toggleSecurityDialog() {
     return function(dispatch: (Object) => Object) {
-        dispatch(openDialog(SecurityDialog));
+        dispatch(toggleDialog(SecurityDialog));
     };
 }

react/features/security/components/security-dialog/SecurityDialogButton.js

 import { IconSecurityOff, IconSecurityOn } from '../../../base/icons';
 import { connect } from '../../../base/redux';
 import { AbstractButton, type AbstractButtonProps } from '../../../base/toolbox';
-import { openSecurityDialog } from '../../actions';
+import { toggleSecurityDialog } from '../../actions';
 
 
 type Props = AbstractButtonProps & {
  * @returns {Props}
  */
 const mapDispatchToProps = {
-    onClick: () => openSecurityDialog()
+    onClick: () => toggleSecurityDialog()
 };
 
 export default translate(connect(mapStateToProps, mapDispatchToProps)(SecurityDialogButton));