wizard: show passphrase in the same window as the seed

gui/qt/util.py

@@ -49,6 +49,12 @@ expiration_values = [
 ]
 
 
+def clean_text(seed_e):
+    text = unicode(seed_e.toPlainText()).strip()
+    text = ' '.join(text.split())
+    return text
+
+
 class Timer(QThread):
     stopped = False