feat(server): save genres for artists and albums

This can later be used for reports

src/music-library/dto/create-album.dto.ts

@@ -1,8 +1,10 @@
 import { SpotifyLibraryDetails } from "../../sources/spotify/spotify-library-details.entity";
 import { Artist } from "../artist.entity";
+import { Genre } from "../genre.entity";
 
 export class CreateAlbumDto {
   name: string;
   artists: Artist[];
+  genres: Genre[];
   spotify?: SpotifyLibraryDetails;
 }

src/music-library/dto/create-artist.dto.ts

@@ -1,6 +1,8 @@
 import { SpotifyLibraryDetails } from "../../sources/spotify/spotify-library-details.entity";
+import { Genre } from "../genre.entity";
 
 export class CreateArtistDto {
   name: string;
+  genres: Genre[];
   spotify?: SpotifyLibraryDetails;
 }

src/music-library/dto/create-genre.dto.ts

@@ -0,0 +1,3 @@
+export class CreateGenreDto {
+  name: string;
+}

src/music-library/dto/find-genre.dto.ts

@@ -0,0 +1,3 @@
+export class FindGenreDto {
+  name: string;
+}