Migrate all notes specs to jest

app/assets/javascripts/notes/components/diff_with_note.vue

.../frontend/notes/components/diff_discussion_header_spec.js

spec/frontend/notes/components/diff_with_note_spec.js

spec/frontend/notes/components/discussion_filter_spec.js

...s/components/discussion_resolve_with_issue_button_spec.js

...ontend/notes/components/note_actions/reply_button_spec.js

spec/frontend/notes/components/note_actions_spec.js

spec/frontend/notes/components/note_awards_list_spec.js

spec/frontend/notes/components/note_body_spec.js

spec/frontend/notes/components/note_form_spec.js

.../frontend/notes/components/note_signed_out_widget_spec.js

spec/frontend/notes/components/noteable_discussion_spec.js

spec/frontend/notes/components/noteable_note_spec.js

spec/frontend/notes/components/toggle_replies_widget_spec.js

spec/frontend/notes/stores/collapse_utils_spec.js

spec/javascripts/helpers/init_vue_mr_page_helper.js

spec/javascripts/notes/helpers.js

spec/javascripts/notes/mock_data.js