Fix broken links.
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### What?
Fix broken links to collections and access control overview.
### Why?
### How?
Fixes #
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fixed small typo
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### What?
Small typo fix in Docs
### Why?
### How?
Fixes #
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### What?
This PR fixes a variety of links around the docs.
### Why?
To link readers to the correct location in the docs
### How?
Changes and fixes to a number of doc links.
1
`import type { Field } from 'payload/types'`
to
`import type { Field } from 'payload'`
2
`import { buildConfig } from 'payload/config'`
to
`import { buildConfig } from 'payload'`
3
```
import { SelectInput, useField } from 'payload/components/forms';
import { useAuth } from 'payload/components/utilities';
```
to
`import { SelectInput, useAuth, useField } from '@payloadcms/ui'`
4
uses `import type` for `import type { CollectionConfig } from 'payload'`
* chore: ensures example configs are being exported when necessary
* chore: adds note regarding updating of hidden fields
---------
Co-authored-by: Jessica Boezwinkle <jessica@trbl.design>
