Minor fixes

Added a few comments, deactivated the buttons where gamemodes don't
work.

EO-Flashcards/EO-Flashcards/frmArcade.vb

@@ -8,6 +8,7 @@ Public Class frmArcade
     'Dim english As String() = My.Resources.engout 'This causes errors because My.Resource.engout is compiled into the executable, and doesn't allow being imported back into a string.
     Dim english As String() = System.IO.File.ReadAllLines("C:\Users\ACP\Documents\GitHub\EO-Flashcards\EO-Flashcards\EO-Flashcards\Resources\engout.txt")
     Dim esperanto As String() = System.IO.File.ReadAllLines("C:\Users\ACP\Documents\GitHub\EO-Flashcards\EO-Flashcards\EO-Flashcards\Resources\espout.txt")
+    ' I know this doesn't work on more than one computer, but If I use My.Resources It would error out.
     Dim score As Integer = 0
     Public Sub frmArcade_Load(sender As Object, e As EventArgs) Handles MyBase.Load
         Randomize()