Feat: es modules (#139)

* All file imports change from commonjs to es-module

* Improved plex error responses back from api

* Converted viewHistory to es module

* Es-module requires file extension, updated all imports

* Fix esmodule not having __dirname defined in scope

* Replace dynamic-require with fs readFileSync

* Short message service module function is exported as default

* Resolved lint issues & ignore import/extension rule until typescript

* All tests file imports changed from commonjs to es-module

* Import json fixtures with new helper

src/plex/stream/convertStreamToPlayback.js

@@ -11,4 +11,4 @@ class convertStreamToPlayback {
   }
 }
 
-module.exports = convertStreamToPlayback;
+export default convertStreamToPlayback;

src/plex/stream/convertStreamToPlayer.js

@@ -1,4 +1,4 @@
-const Player = require("../../media_classes/player");
+import Player from "../../media_classes/player.js";
 
 function convertStreamToPlayer(plexStream) {
   const player = new Player(plexStream.device, plexStream.address);
@@ -10,4 +10,4 @@ function convertStreamToPlayer(plexStream) {
   return player;
 }
 
-module.exports = convertStreamToPlayer;
+export default convertStreamToPlayer;

src/plex/stream/convertStreamToUser.js

@@ -1,7 +1,7 @@
-const User = require("../../media_classes/user");
+import User from "../../media_classes/user.js";
 
 function convertStreamToUser(plexStream) {
   return new User(plexStream.id, plexStream.title);
 }
 
-module.exports = convertStreamToUser;
+export default convertStreamToUser;