Fix view toolbar button to properly show menu when clicked

Author: AdityaShome

pippy_app.py

@@ -243,13 +243,14 @@ def initialize_display(self):
 
         view_btn = ToolbarButton()
         view_toolbar = DevelopViewToolbar(self)
-        view_btn.props.page = view_toolbar
+        view_btn.set_page(view_toolbar)
         view_btn.props.icon_name = 'toolbar-view'
         view_btn.props.label = _('View')
         view_toolbar.connect('font-size-changed',
                              self._font_size_changed_cb)
         self.get_toolbar_box().toolbar.insert(view_btn, -1)
         self.view_toolbar = view_toolbar
+        view_btn.show()
         view_toolbar.show()
 
         actions_toolbar = self.get_toolbar_box().toolbar