When the API is not functioning and I try to make an API request, the UI does not present an error

[CliffAw]

Description

When the API is not functioning and I try to make an API request, the UI does not present an error.

Steps to Reproduce

• Run the app without starting the API
• Try to make an API request (e.g. by converting a currency to another)
• There is no indication that something went wrong

Expected Behaviour

When running the app and trying to perform an action that depends on the API, there should be a graceful handling of this scenario should the API be unusable.

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