Allow users to download the bridge QR code
As mentioned in #41383, the bridge QR code dialog just contains a plain <svg>. Testing with Orca, this basically has no presence for the screen reader, so the dialog seems to be empty.
Moreover, there aren't any options to download the image for sharing elsewhere, or open it in a new tab (to zoom and make it bigger). A user would basically have to lossy screenshot it if they wanted to keep the image, or copy it from the developer console
Instead of an <svg> element, we could use a <img> element whose src is a data: uri for the SVG. This would allow us to add an alt attribute, like "Bridge QR code", and the user can use the context menu to open it in a new tab or download the SVG.
In addition, we could wrap it in an <a> element with a "Save image" title, to make it downloadable using a single primary click. But I think UX should decide if that is desirable or not, since it is just an option to make downloading the image more discoverable.
NOTE: Last time I asked about this, there wasn't actually any application that scanned these QR codes. So you basically have to use some other application to extract the bridge address, and then manually copy them into your android application or desktop application.