conversion to app and configmanager part 2 export still missing

wp_app_config.py

@@ -24,7 +24,6 @@ class AppConfig:
 
     # Configuration files
     SETTINGS_FILE: Path = CONFIG_DIR / "settings"
-    KEYS_FILE: Path = CONFIG_DIR / "keys"
     SYSTEMD_USER_FOLDER: Path = Path.home() / ".config/systemd/user"
     AUTOSTART_SERVICE: Path = Path.home() / ".config/systemd/user/wg_start.service"
     DEFAULT_SETTINGS: Dict[str, str] = {
@@ -89,10 +88,7 @@ class AppConfig:
         """Ensures that all required directories exist"""
         if not cls.CONFIG_DIR.exists():
             cls.CONFIG_DIR.mkdir(parents=True, exist_ok=True)
-            cls.KEYS_FILE.touch()
         cls.TEMP_DIR.mkdir(parents=True, exist_ok=True)
-        if not cls.KEYS_FILE.exists():
-            cls.KEYS_FILE.touch()
 
     @classmethod
     def create_default_settings(cls) -> None:
@@ -180,7 +176,7 @@ class Msg:
         "sel_list": _("Please select a tunnel from the list"),
         "sign_len": _("The new name may contain only 12 characters"),
         "zero_signs": _("At least one character must be entered"),
-        "false signs": _(
+        "false_signs": _(
             "No valid sign. These must not be used.\nBlank, Slash, Backslash and { }\n"
         ),
         "is_in_use": _("The tunnel is already in use"),
@@ -188,6 +184,9 @@ class Msg:
             "Oh... no valid Wireguard File!\nPlease select a valid Wireguard File"
         ),
         "tl_exist": _("Tunnel already available!\nPlease use another file for import"),
+        "invalid_base64": _(
+            "Invalid base64 format!\nPlease use a Config file with valid key."
+        ),
     }
     TTIP: Dict[str, str] = {
         # Strings for Tooltips