Profile editor - Updated timeline repeat for segments

UI - Added missing Stylet base calls
Profile editor - Removed redundant min width on timeline rails
Profile editor - Fixed timeline zooming
Profile editor - Added missing tooltips

src/Artemis.UI/Screens/Settings/Tabs/Devices/DeviceSettingsTabViewModel.cs

@@ -32,6 +32,8 @@ namespace Artemis.UI.Screens.Settings.Tabs.Devices
                 foreach (var deviceSettingsViewModel in instances)
                     Items.Add(deviceSettingsViewModel);
             });
+
+            base.OnActivate();
         }
     }
 }