MR empty state

app/assets/stylesheets/framework/blocks.scss

app/controllers/groups/application_controller.rb

app/views/groups/merge_requests.html.haml

app/views/projects/merge_requests/_merge_requests.html.haml

app/views/projects/merge_requests/index.html.haml

app/views/shared/_merge_requests.html.haml

app/views/shared/empty_states/_merge_requests.html.haml

app/views/shared/empty_states/icons/_merge_requests.svg

...ng-started-better-empty-state-for-merge-requests-view.yml

features/dashboard/dashboard.feature

features/project/issues/issues.feature

features/steps/project/fork.rb

features/steps/project/forked_merge_requests.rb

features/steps/project/merge_requests.rb

features/steps/shared/project.rb

spec/features/dashboard/merge_requests_spec.rb

spec/features/groups/empty_states_spec.rb

spec/features/merge_requests/create_new_mr_spec.rb

spec/features/projects/merge_requests/list_spec.rb

spec/features/search_spec.rb