Function getBasicGraphQlConfigDefinitions

getBasicGraphQlConfigDefinitions(
    defaultPort: number,
    variables?: Dict<string | undefined>,
    logger?: LoggerFn,
): { graphqlGuiEnabled: () => boolean; port: () => number }
Get the basic configuration definitions for GraphQL-specific settings
Parameters
- defaultPort: number
- variables: Dict<string | undefined> = process.env
  process.env variables or custom provided values
- Optionallogger: LoggerFn
Returns { graphqlGuiEnabled: () => boolean; port: () => number }
The following configuration values are included:
```
port // e.g. PORT=8080
graphqlGuiEnabled // e.g. GRAPHQL_GUI_ENABLED=true
```
- graphqlGuiEnabled: () => boolean
  Example
  GRAPHQL_GUI_ENABLED=true
- port: () => number
  Example
  PORT=8080