[Bug] (Portfolio) Loading external Portfolio files fail

[jfarid27]

Describe the bug

portfolio Load doesn't accept an external csv, and crashes the application when attempted.

To Reproduce

1. Navigate to portfolio.
2. Run load -f <your file>.
3. The application will crash and produce an error that the option is not an available option.

Screenshots

Desktop (please complete the following information):

• OS: Mac OS
• Python version 3.8.13
• Version: 1.5.0 (Bug is confirmed on 1.5.0)

Additional context

https://github.com/OpenBB-finance/OpenBBTerminal/blame/main/openbb_terminal/portfolio/portfolio_controller.py#L290

I believe this was added here accidentally. This forces the user to only be able to select from these choices, instead of having the user be able to load from an external source. The other issue is once that line is cleared, I can't load a file directly since the terminal grabs forward-slash "/" characters. I believe there needs to be some kind of escape character added for "/".

[montezdesousa]

@jfarid27 thanks for pointing this.

I'll address the choices issue as it is creating problems with exporting transaction files from degiro menu as well (#2091).

Regarding path I believe it is related with this #2064. After removing choice restrictions and passing a path with back-slash it appears to work on my end. But I'll get back to this