Prompt Library Refinements (#13470)

TODO:

- [x] Moving the cursor out of the title editor should unselect any
selected text

Release Notes:

- N/A

---------

Co-authored-by: Antonio Scandurra <me@as-cii.com>
Co-authored-by: Richard <richard@zed.dev>

crates/ui/src/components/button/button.rs

@@ -249,6 +249,11 @@ impl Clickable for Button {
         self.base = self.base.on_click(handler);
         self
     }
+
+    fn cursor_style(mut self, cursor_style: gpui::CursorStyle) -> Self {
+        self.base = self.base.cursor_style(cursor_style);
+        self
+    }
 }
 
 impl FixedWidth for Button {