make code

frontend/shared/InteractiveVideo.svelte

@@ -20,6 +20,7 @@
 		offer: (body: any) => Promise<any>;
 	};
 	export let rtc_configuration: Object;
+	export let track_constraints: MediaTrackConstraints = {};
 
 	const dispatch = createEventDispatcher<{
 		change: FileData | null;
@@ -48,6 +49,7 @@
 		{rtc_configuration}
 		{include_audio}
 		{time_limit}
+		{track_constraints}
 		on:error
 		on:start_recording
 		on:stop_recording