1) Make folder name pluralise inside 'templates' folder and fix naming inconsistency.

2) Remove unwanted functions "module_js()" from the code.
3) Change naming convention for 'Roles' module.

web/pgadmin/browser/server_groups/servers/tablespaces/__init__.py

@@ -89,25 +89,11 @@ class TablespaceView(PGChildNodeView):
         'stats': [{'get': 'statistics'}, {'get': 'statistics'}],
         'dependency': [{'get': 'dependencies'}],
         'dependent': [{'get': 'dependents'}],
-        'module.js': [{}, {}, {'get': 'module_js'}],
         'vopts': [{}, {'get': 'variable_options'}],
         'move_objects': [{'put': 'move_objects'}],
         'move_objects_sql': [{'get': 'move_objects_sql'}],
     })
 
-    def module_js(self):
-        """
-        This property defines (if javascript) exists for this node.
-        Override this property for your own logic.
-        """
-        return make_response(
-            render_template(
-                "tablespaces/js/tablespaces.js",
-                _=gettext
-            ),
-            200, {'Content-Type': 'application/javascript'}
-        )
-
     def check_precondition(f):
         """
         This function will behave as a decorator which will checks