Incorrect output format for newly created wallets in btcli wallet list

[chideraao]

Description
When creating a new wallet using BTCLI, the output of the btcli wallet list display an additional field with %hotkey_name%pub in the wallet tree. However, the output also includes .txt, which looks inconsistent with the proposed behavior.

We should investigate whether this behavior originates from the wallet implementation or the BTCLI side and then fix.

Steps to reproduce:

1. Create a new wallet using BTCLI.
2. Run btcli wallet list.
3. Compare the output with older wallets.

Expected behavior:
New wallets should be displayed with the hotkeypub in the wallet tree, but without .txt in the output.

[thewhaleking]

Resolved by #611