add libadwaita info

src/app/browser/about.rs

@@ -10,6 +10,12 @@ impl About {
     pub fn new() -> Self {
         // Collect debug info
         let debug = &[
+            format!(
+                "Adwaita {}.{}.{}",
+                adw::major_version(),
+                adw::minor_version(),
+                adw::micro_version()
+            ),
             format!(
                 "Gtk {}.{}.{}",
                 gtk::major_version(),