Desktop: Added support for checkboxes and fixed various issues with WYSIWYG editor

ReactNativeClient/lib/HtmlToMd.js

@@ -9,6 +9,9 @@ class HtmlToMd {
 			anchorNames: options.anchorNames ? options.anchorNames.map(n => n.trim().toLowerCase()) : [],
 			codeBlockStyle: 'fenced',
 			preserveImageTagsWithSize: !!options.preserveImageTagsWithSize,
+			bulletListMarker: '-',
+			emDelimiter: '*',
+			strongDelimiter: '**',
 		});
 		turndown.use(turndownPluginGfm);
 		turndown.remove('script');