Removing some dividers to make header dropdown menus more consistent (#8857)

* separators removed, "childs" changed to "children"

* changing `children` back to `childs`... it's baked in somewhere in Fab

* linting

* reverting changes to MenuObject

* adding separator above Druid menu items

superset/connectors/druid/views.py

@@ -409,6 +409,9 @@ class Druid(BaseSupersetView):
 
 
 if app.config["DRUID_IS_ACTIVE"]:
+
+    appbuilder.add_separator("Sources")
+
     appbuilder.add_view(
         DruidDatasourceModelView,
         "Druid Datasources",

superset/connectors/sqla/views.py

@@ -438,5 +438,3 @@ appbuilder.add_link(
     category_label=__("Sources"),
     category_icon="fa-table",
 )
-
-appbuilder.add_separator("Sources")

superset/views/core.py

@@ -3018,7 +3018,6 @@ class CssTemplateAsyncModelView(CssTemplateModelView):
     list_columns = ["template_name", "css"]
 
 
-appbuilder.add_separator("Sources")
 appbuilder.add_view(
     CssTemplateModelView,
     "CSS Templates",
@@ -3061,7 +3060,6 @@ appbuilder.add_link(
     category_label=__("Sources"),
     category_icon="fa-wrench",
 )
-appbuilder.add_separator("Sources")
 
 
 @app.after_request