Get into oanda submenu

[buahaha]

Description

• Summary of the change / bug fix.

Comment-out not needed checks for to and from currency.
Add oanda forex source in dictionary.

• Link # issue, if applicable.

Fix #1608

• Screenshot of the feature or the bug before/after fix, if applicable.
• Relevant motivation and context.

Can not login using Oanda valid info.

• List any dependencies that are required for this change.

None.

How has this been tested?

• Please describe the tests that you ran to verify your changes.

Insert proper environment variables, run terminal in debug mode, and use forex/oanda menu

• Provide instructions so we can reproduce.

Try set the account type using -t. Now it's renamed to -at that stands for account type

• Please also list any relevant details for your test configuration.

Working Oanda account.

Checklist:

• Update our Hugo documentation following these guidelines.
• Update our tests following these guidelines.

No tests, as this is very simple fix, and I'm not sure, if you follow with my reasoning.

• Make sure you are following our CONTRIBUTING guidelines.
• If a feature was added make sure to add it to the corresponding scripts file.

Again, it's basic. Enables only login.

Others

• I have performed a self-review of my own code.

No.

• I have commented my code, particularly in hard-to-understand areas.

No. I have commented out, in my opinion, not needed part of checking for valid currency pair before entering Oanda submenu

• My code passes all the checks pylint, flake8, black, ... To speed up development you should run pre-commit install.

Overkill for simple fix, but I'm taking this into consideration ;)

• New and existing unit tests pass locally with my changes. You can test this locally using pytest tests/....

[colin99d]

Thanks for the bug fix! Once CI passes we can merge.