## Context
Just some clean up as I was going through stuff
- `useExecuteSqlQuery` is deprecated and not used at all
- As such `execute-sql-query` is technically irrelevant, the more
relevant file is `execute-sql-mutation`
- Hence opting to consolidate `execute-sql-query` into
`execute-sql-mutation`
- Also removing `ExecuteSqlError` since its just re-exporting the
`ResponseError` type
There's a lot of file changes but its essentially just updating the
importing statements across the files