Open Library search API

If nothing is found on the server, returns results from open library
API. Clicking on a book imports it.

front/src/router.js

@@ -8,12 +8,14 @@ import SignUp from './SignUp.vue'
 import LogIn from './LogIn.vue'
 import Home from './Home.vue'
 import SearchBook from './SearchBook.vue'
+import OpenLibraryImport from './OpenLibraryImport.vue'
 import { useAuthStore } from './auth.store'
 
 const routes = [
   { path: '/', component: Home },
   { path: '/books', component: BooksBrowser },
   { path: '/book/:id', component: BookForm, props: true },
+  { path: '/importopenlibrary/:openlibraryid', component: OpenLibraryImport, props: true },
   { path: '/author/:id', component: AuthorForm, props: true },
   { path: '/search/:searchterm', component: SearchBook, props: true },
   { path: '/add', component: AddBook },