Recovering wallet using a file has issues cross-OS

[bsclifton]

Description

When trying to recover a wallet using a file, you can run into an error. You then can open the file manually and paste (which works great).

Steps to Reproduce

1. Launch Brave on macOS
2. Enable payments
3. Advanced settings > Backup your wallet > Save recovery file
4. Save file to desktop as "recovery.txt"
5. Launch a Windows VM and drag the "recovery.txt" file from macOS into the Windows desktop
6. Launch Brave on Windows
7. Enable payments
8. Advanced settings > Recover your wallet > import recovery key
9. Pick file you created in step 5

Actual result:

Error should occur

Expected result:
Wallet should recover successfully

Reproduces how often:

Brave Version

about:brave info:

Reproducible on current live release:

Additional Information