feat: Initial clean release of CHM

packages/app-desktop/gui/ConfigScreen/controls/ToggleAdvancedSettingsButton.tsx

@@ -0,0 +1,29 @@
+
+import * as React from 'react';
+import Button, { ButtonLevel } from '../../Button/Button';
+import { _ } from '@joplin/lib/locale';
+
+interface Props {
+	onClick: ()=> void;
+	advancedSettingsVisible: boolean;
+	'aria-controls': string;
+}
+
+const ToggleAdvancedSettingsButton: React.FunctionComponent<Props> = props => {
+	const iconName = props.advancedSettingsVisible ? 'fa fa-angle-down' : 'fa fa-angle-right';
+	return (
+		<div style={{ marginBottom: 10 }}>
+			<Button
+				level={ButtonLevel.Secondary}
+				onClick={props.onClick}
+				iconName={iconName}
+
+				aria-controls={props['aria-controls']}
+				aria-expanded={props.advancedSettingsVisible}
+
+				title={_('Show Advanced Settings')}
+			/>
+		</div>
+	);
+};
+export default ToggleAdvancedSettingsButton;