Add Python 3.11 compatibility

src/elm/pages/ForgotPasswordPage.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from _sha2 import sha256
+from hashlib import sha256
 from random import choices
 from typing import Any, Optional
 

src/elm/pages/MyBalancePage.py

@@ -26,7 +26,7 @@ class TransactionRow(Component):
         return Rectangle(
             content=Row(
                 Text(
-                    f"{self.transaction_time.strftime("%d.%m.%y")} /",
+                    f"{self.transaction_time.strftime('%d.%m.%y')} /",
                     justify="left",
                     font_size=0.8,
                     margin_left=0.5,