Changed design language. Added editions, better support for authors. Base for file handling

PageManager.Web/src/api/authors.ts

@@ -0,0 +1,10 @@
+import type { AuthorSummary, AuthorDetail } from '../types'
+import { api } from './client'
+
+export function fetchAuthors(): Promise<AuthorSummary[]> {
+  return api.get<AuthorSummary[]>('/authors')
+}
+
+export function fetchAuthor(id: number): Promise<AuthorDetail> {
+  return api.get<AuthorDetail>(`/authors/${id}`)
+}