chore(http): renamed http manager filename

src/index.ts

@@ -1,6 +1,6 @@
 export * from './lib/SpotifyAPI';
 export * from './lib/Manager';
-export * from './lib/http/HttpManager';
+export * from './lib/http/HttpClient';
 export * from './lib/album/AlbumManager';
 export * from './lib/artist/ArtistManager';
 export * from './lib/audio/AudioManager';

src/lib/Manager.ts

@@ -1,4 +1,4 @@
-import { HttpClient } from './http/HttpManager';
+import { HttpClient } from './http/HttpClient';
 
 export abstract class Manager {
   // eslint-disable-next-line no-unused-vars

src/lib/SpotifyAPI.ts

@@ -2,7 +2,7 @@ import { PrivateConfig, SpotifyConfig } from '../interfaces/Config';
 import { AlbumManager } from './album/AlbumManager';
 import { ArtistManager } from './artist/ArtistManager';
 import { AudioManager } from './audio/AudioManager';
-import { HttpClient } from './http/HttpManager';
+import { HttpClient } from './http/HttpClient';
 import { MeManager } from './me/MeManager';
 import { PlaylistManager } from './playlist/PlaylistManager';
 import { RecommendationsManager } from './recommendations/RecommendationsManager';