add translation, fix small bugs

TV Player WPF/Assets/en-US.xaml

@@ -0,0 +1,12 @@
+<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+                    xmlns:system="clr-namespace:System;assembly=mscorlib">
+
+    <system:String x:Key="settings">Settings</system:String>
+    <system:String x:Key="fullscreen">Fullscreen</system:String>
+    <system:String x:Key="rememberLast">Remember last seen programm</system:String>
+    <system:String x:Key="addNewPlaylist">Add new playlist</system:String>
+    <system:String x:Key="playlistURL">Playlist URL</system:String>
+    <system:String x:Key="playlistName">Playlist name</system:String>
+    <system:String x:Key="programs">programs</system:String>
+</ResourceDictionary>