Empty documentation if file is all exports

Input code

```
export {combine} from './combine'
export {sample} from './sample'

export type {Domain} from 'effector/domain'
export {createDomain} from 'effector/domain'

export type {Event} from 'effector/event'
export {
createEvent,
forward,
fromObservable,
chord,
filter,
} from 'effector/event'

export type {Effect} from 'effector/effect'
export {createEffect} from 'effector/effect'

export type {Store} from 'effector/store'
export {
createStore,
createStoreObject,
setStoreName,
extract,
createApi,
restore,
restoreEvent,
restoreEffect,
restoreObject,
withProps,
} from 'effector/store'

export {Kind, clearNode, createGraph as createNode, step} from 'effector/stdlib'
export {launch} from 'effector/kernel'
export type {kind} from 'effector/stdlib'

export {
invariant,
warning,
isUnit,
isStore,
isEvent,
isEffect,
isDomain,
is,
} from 'effector/validate'
export {version} from 'effector/flags'

//eslint-disable-next-line
export * as blocks from 'effector/blocks'
```

Output docs

```

### Table of Contents
```

* What version of documentation.js are you using?: 10.1.0
* How are you running documentation.js (on the CLI, Node.js API, Grunt, other?):CLI

Reproduce the issue with the all-exports input using documentation.js 10.1.0 through the CLI, then trace how that input is processed into the generated documentation. Done means the generated output documents the exported API instead of containing only the generated header and table of contents.

Written by the indexing model from the issue text.