Move video.rs into its own module

src/main.rs

@@ -44,6 +44,9 @@ use crate::service::ServiceBuilder;
 use crate::state::AppState;
 use crate::tags::*;
 use crate::video::*;
+use crate::video::actors::{
+    create_playlist, generate_video_thumbnail, ProcessMessage, ScanDirectoryMessage,
+};
 
 mod auth;
 mod data;