template editor: update navigation bar locator

Locator for the template nagigation bar (Editor/Changes/Preview) has slightly changed.

Related to change theforeman/foreman#10728

Author: pnovotny

airgun/views/common.py

@@ -555,7 +555,7 @@ class TemplateEditor(View):
     """
 
     ROOT = ".//div[@id='editor-container']"
-    rendering_options = ItemsList(".//div[contains(@class,'navbar-editor')]/ul")
+    rendering_options = ItemsList(".//div[@data-ouia-component-id='editor-horizontal-navbar']/ul")
     import_template = Button(id='import-btn')
     fullscreen = Text(locator=".//button[@id='fullscreen-btn']")
     fullscreen_close = Text(