do not crash on pressing the empty space near A or L

app/src/main/kotlin/com/simplemobiletools/keyboard/views/MyKeyboardView.kt

@@ -1224,7 +1224,7 @@ class MyKeyboardView @JvmOverloads constructor(context: Context, attrs: Attribut
                     detectAndSendKey(mCurrentKey, touchX, touchY, eventTime)
                 }
 
-                if (mKeys[mCurrentKey].codes.firstOrNull() == MyKeyboard.KEYCODE_SPACE && !mIsLongPressingSpace) {
+                if (mKeys.getOrNull(mCurrentKey)?.codes?.firstOrNull() == MyKeyboard.KEYCODE_SPACE && !mIsLongPressingSpace) {
                     detectAndSendKey(mCurrentKey, touchX, touchY, eventTime)
                 }