Created more events to use; restructured plugin listing

plugins/code/ui/tabs_bar/tab_widget.py

@@ -32,6 +32,7 @@ class TabWidget(Gtk.Box):
         self.set_orientation(0)
         self.set_hexpand(False)
         self.set_vexpand(False)
+        self.set_can_focus(False)
         self.set_size_request(-1, 12)
 
     def _setup_signals(self):
@@ -43,6 +44,10 @@ class TabWidget(Gtk.Box):
         self.close_bttn = Gtk.Button()
         icon            = Gtk.Image(stock = Gtk.STOCK_CLOSE)
 
+        self.event_box.set_can_focus(False)
+        self.label.set_can_focus(False)
+        self.close_bttn.set_can_focus(False)
+
         self.event_box.set_above_child(True)
         ctx = self.label.get_style_context()
         ctx.add_class("tab-label")