feat: Set activatable widget on action rows

And add tooltips

src/views/preferences_window.py

@@ -51,7 +51,7 @@ class PreferencesWindow(Adw.PreferencesWindow):
             self.model_group.add(p)
         else:
             self.no_models_available = Adw.ExpanderRow()
-            self.no_models_available.set_title(_("Download more models"))
+            self.no_models_available.set_title(_("List of available models"))
 
             for model in GPT4All.list_models():
                 self.no_models_available.add_row(DownloadRow(self.app, self, model))

src/widgets/download_row.blp

@@ -2,11 +2,13 @@ using Gtk 4.0;
 using Adw 1;
 
 template $DownloadRow : Adw.ActionRow {
+    activatable-widget: download;
     [suffix]
     Button download {
         styles ["flat"]
         valign: center;
         icon-name: "folder-download-symbolic";
+        tooltip-text: _("Download Model");
         clicked => $on_download_button_clicked();
     }
 }

src/widgets/model_item.blp

@@ -2,11 +2,13 @@ using Gtk 4.0;
 using Adw 1;
 
 template $Model : Adw.ActionRow {
+    activatable-widget: delete_button;
     [suffix]
     Button delete_button {
         styles ["flat"]
         valign: center;
         icon-name: "user-trash-symbolic";
+        tooltip-text: _("Delete Model");
         clicked => $on_delete_button_clicked();
     }
 }