Fixed fullPath for assignees and labels

...javascripts/work_items/components/work_item_assignees.vue

...vascripts/work_items/components/work_item_description.vue

...ts/javascripts/work_items/components/work_item_detail.vue

...ts/javascripts/work_items/components/work_item_labels.vue

...ipts/work_items/graphql/create_work_item.mutation.graphql

...items/graphql/create_work_item_from_task.mutation.graphql

...ork_items/graphql/local_update_work_item.mutation.graphql

...ipts/work_items/graphql/update_work_item.mutation.graphql

...work_items/graphql/update_work_item_task.mutation.graphql

...k_items/graphql/update_work_item_widgets.mutation.graphql

...javascripts/work_items/graphql/work_item.fragment.graphql

...ts/javascripts/work_items/graphql/work_item.query.graphql

...ascripts/work_items/graphql/work_item_links.query.graphql

...pts/work_items/graphql/work_item_widgets.fragment.graphql

...javascripts/work_items/graphql/work_item.fragment.graphql

...pts/work_items/graphql/work_item_widgets.fragment.graphql

...rontend/work_items/components/work_item_assignees_spec.js

...ntend/work_items/components/work_item_description_spec.js

spec/frontend/work_items/components/work_item_labels_spec.js

spec/frontend/work_items/mock_data.js