Fix xterm in pyte

src/fenrirscreenreader/screenDriver/ptyDriver.py

@@ -20,7 +20,7 @@ class Terminal:
     def __init__(self, columns, lines, p_in):
         self.text = ''
         self.attributes = None
-        self.screen = pyte.HistoryScreen(columns, lines)
+        self.screen = fenrirScreen(columns, lines)
         self.screen.set_mode(pyte.modes.LNM)
         self.screen.write_process_input = \
             lambda data: p_in.write(data.encode())