Align list of supported tags in rendered markdown (#161544)

This expands the list of html tags we allow in markdown. To get this list, I've copied the list of tags from `markdownDocumentRenderer` into `dom` after  reviewing them

For #134514, I've also added `video` to the list of allowed tags

src/vs/base/browser/dom.ts

@@ -1363,6 +1363,77 @@ const defaultSafeProtocols = [
 	Schemas.command,
 ];
 
+/**
+ * List of safe, non-input html tags.
+ */
+export const basicMarkupHtmlTags = Object.freeze([
+	'a',
+	'abbr',
+	'b',
+	'bdo',
+	'blockquote',
+	'br',
+	'caption',
+	'cite',
+	'code',
+	'col',
+	'colgroup',
+	'dd',
+	'del',
+	'details',
+	'dfn',
+	'div',
+	'dl',
+	'dt',
+	'em',
+	'figcaption',
+	'figure',
+	'h1',
+	'h2',
+	'h3',
+	'h4',
+	'h5',
+	'h6',
+	'hr',
+	'i',
+	'img',
+	'ins',
+	'kbd',
+	'label',
+	'li',
+	'mark',
+	'ol',
+	'p',
+	'pre',
+	'q',
+	'rp',
+	'rt',
+	'ruby',
+	'samp',
+	'small',
+	'small',
+	'span',
+	'strike',
+	'strong',
+	'sub',
+	'summary',
+	'sup',
+	'table',
+	'tbody',
+	'td',
+	'tfoot',
+	'th',
+	'thead',
+	'time',
+	'tr',
+	'tt',
+	'u',
+	'ul',
+	'var',
+	'video',
+	'wbr',
+]);
+
 /**
  * Sanitizes the given `value` and reset the given `node` with it.
  */