add table to default sanitize allowlist

Created by: HexCodeFFF

Prerequisites

• I have searched for duplicate or closed feature requests
• I have read the contributing guidelines

Proposal

add table, tr, td, th, tbody, and colgroup as allowed tags and colspan, rowspan, and span to allowed attributes for the relevant elements to the default sanitizer configuration

Motivation and context

tables are a useful and static HTML object which I'm personally using to create a mini calendar in a popover for my chrome extension. this was mentioned in #30764 (closed) and I'm aware a workaround is easily possible but shouldn't be needed imo