feat: add interfaces for xtream api

shared/xtream-live-stream.interface.ts

@@ -1,14 +1,8 @@
-export interface XtreamLiveStream {
-    num: number;
-    name: string;
+import { XtreamItem } from './xtream-item.interface';
+
+export interface XtreamLiveStream extends XtreamItem {
     stream_type: 'live';
-    stream_id: number;
-    stream_icon: string;
     epg_channel_id?: number;
-    added: string;
-    category_id: string;
-    custom_sid?: string;
     tv_archive: number;
-    direct_source?: string;
     tv_archive_duration: number;
 }