Moved all reducers and actions to their own folders

ui/src/layout/Login.js

@@ -15,7 +15,7 @@ import { useLogin, useNotify, useTranslate } from 'react-admin'
 import Notification from './Notification'
 import LightTheme from '../themes/light'
 import config from '../config'
-import { clearQueue } from '../audioplayer'
+import { clearQueue } from '../actions'
 
 const useStyles = makeStyles((theme) => ({
   main: {

ui/src/layout/Logout.js

@@ -1,7 +1,7 @@
 import React, { useCallback } from 'react'
 import { useDispatch } from 'react-redux'
 import { Logout } from 'react-admin'
-import { clearQueue } from '../audioplayer'
+import { clearQueue } from '../actions'
 
 export default (props) => {
   const dispatch = useDispatch()