remove special treatment when only use permanent passwrod but no password set (#8566)

1. Remove special treatment when only use permanent passwrod  but no password set, it has  no need and `Connection not allowd` prompt make user confusing.
2. When only use permanent password is chosen and the permanent password
   is empty, pop up the set-password dialog, if still not set in the
   dialog, back to the old choice
3. Add cancel confirm for 2fa and telegram bot

Signed-off-by: 21pages <sunboeasy@gmail.com>

flutter/lib/common/widgets/dialog.dart

@@ -2188,3 +2188,31 @@ void setSharedAbPasswordDialog(String abName, Peer peer) {
     );
   });
 }
+
+void CommonConfirmDialog(OverlayDialogManager dialogManager, String content,
+    VoidCallback onConfirm) {
+  dialogManager.show((setState, close, context) {
+    submit() {
+      close();
+      onConfirm.call();
+    }
+
+    return CustomAlertDialog(
+      content: Row(
+        children: [
+          Expanded(
+            child: Text(content,
+                style: const TextStyle(fontSize: 15),
+                textAlign: TextAlign.start),
+          ),
+        ],
+      ).marginOnly(bottom: 12),
+      actions: [
+        dialogButton(translate("Cancel"), onPressed: close, isOutline: true),
+        dialogButton(translate("OK"), onPressed: submit),
+      ],
+      onSubmit: submit,
+      onCancel: close,
+    );
+  });
+}