Repro

{"rules": {"@typescript-eslint/interface-name-prefix": [2,       {"usePrefix":"always","prefix":"CustomPrefix"      }    ]  }}

exportinterfaceCustomPrefixHelloWorld{}

Expected Result
This rule would be awesome if it allow us natively to use the prefix we need instead of having onlyI. I know it's the recommended stuff, but sometimes a team works with same practices and other keyworks.

Actual Result
We can use onlyI 😞