"Copy block" menu entry for code blocks
It’s common to have a copy button next to code blocks. Element does it (on hover), websites with documentation or tutorials do it… That button would be out of place for us though, but we do have a right click menu. I know I can “Select all”, then “Copy”, but that “Select all” makes me think it’s gonna be the whole conversation, even if it’s actually the content of that code block. The menu items for code blocks actually look weird, for a piece of read-only text. I assume they are the default for that widget, especially since there’s a paste entry which really doesn’t make sense in this context. Regular messages do have a Copy text entry, so having the same for code feels consistent.