refactor: re-work show detail data management interface

src/Pages/ShowManager.vue

src/api.ts

src/components/shows/MetaArrays.vue

src/components/shows/MetaImages.vue

src/components/shows/MetaOwners.vue

src/components/shows/MetaSimpleTypes.vue

src/components/shows/helper.ts

src/store/modules/shows.js

src/types.ts

src/util.ts