Disable `Next` Button for White Space-Only Wallet Name Input Field

[aliraza556]

Describe the bug

• The Next button remains enabled when the wallet name field contains only white spaces, allowing users to proceed without a valid entry. The button should be disabled in this case.

Bug Demo:

https://github.com/user-attachments/assets/5bc954b2-1be0-42df-876f-95e95084d15c

My Wallet address without name:

Acceptance Criteria

• [x] The Next button is disabled when the wallet name field contains only white spaces.

[aliraza556]

Hi @mrcnk, could you please review this issue? Please assign it to me so that I can fix it.