[FEATURE] add view context to render_component method

Author: Nils Henning

app/helpers/matestack/ui/core/application_helper.rb

@@ -15,7 +15,8 @@ def render_page(page_class, only_page=false)
         def render_component(page_class, component_key)
           page_class.new(nil, context: {
             params: params,
-            request: request
+            request: request,
+            view_context: view_context
           }, controller_instance: self).call(:show, component_key)
         end