Exchange Rates Key Added #4869

[devansh-webkul]

Description

• I just updated the endpoint and they have made some endpoint premium which means you should have paid a subscription.

Bug

Link: #4869

How to test PR

• Set key in .env,

  FIXER_API_KEY=
  EXCHANGE_RATES_API_KEY=

• If you are using fixer exchange then set FIXER_API_KEY key or if you are using default exchange then use EXCHANGE_RATES_API_KEY.

[ghermans]

To make this more user friendly i would suggest to add this to the admin panel instead of using the config file

[devansh-webkul]

@ghermans,

This will take time as the current implementation relies on the helper class name. So the approach should be different we can raise an enhancement for that. Otherwise i need to mark this as draft.