Support for logo and footer in beamer output

The default quarto template for beamer doesn't have a footer. If one selects a beamer theme with footer, the logo isn't placed in the footer (like in revealjs) but above the footer line. This would still be ok, but the logo is not scaled correctly. It seems to be inserted in original size. Instead it should be scaled relative to text size in the footer (as done for revealjs). It would be nice if at least quartos default theme for beamer would support a footer with logo similar to revealjs. That would make converting a revealjs presentation to beamer easier and generate more predictable results. At the moment the best way to convert a quarto revealjs presentation to pdf is not using beamer, but instead use https://revealjs.com/pdf-export/ .