- fix it: Order List Todo

- Split Todo List by Priority and by Completed
- Animation drag

src/model/Todos.ts

@@ -1,13 +1,16 @@
 export interface ITodo {
   id?: number,
   userId: string
-  pos: number,
   descr?: string,
   priority: number,
   completed: boolean,
   created_at: any,
   modify_at: any,
-  expiring_at: any
+  expiring_at: any,
+  id_prev?: number,
+  id_next?: number,
+  modified?: boolean,
+  pos?: number
 }
 
 export interface ITodosState {