added makefile, organised FE assets, bump webkit ver for dev

frontend/wailsjs/go/player/Player.d.ts

@@ -1,7 +1,10 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
+import {player} from '../models';
 import {context} from '../models';
 
+export function ChangeState(arg1:player.PlayerState):Promise<void>;
+
 export function Init(arg1:context.Context):Promise<void>;
 
 export function Play():Promise<void>;

frontend/wailsjs/go/player/Player.js

@@ -2,6 +2,10 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 
+export function ChangeState(arg1) {
+  return window['go']['player']['Player']['ChangeState'](arg1);
+}
+
 export function Init(arg1) {
   return window['go']['player']['Player']['Init'](arg1);
 }