Selectable popover text (#12918)

Release Notes:

- Fixed #5236
- Added the ability to select and copy text from information popovers



https://github.com/zed-industries/zed/assets/50590465/d5c86623-342b-474b-913e-d07cc3f76de4

---------

Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>
Co-authored-by: Antonio <ascii@zed.dev>

crates/editor/src/editor.rs

@@ -11604,8 +11604,11 @@ impl Editor {
         if let Some(blame) = self.blame.as_ref() {
             blame.update(cx, GitBlame::blur)
         }
+        if !self.hover_state.focused(cx) {
+            hide_hover(self, cx);
+        }
+
         self.hide_context_menu(cx);
-        hide_hover(self, cx);
         cx.emit(EditorEvent::Blurred);
         cx.notify();
     }