searchPlugin's searchOverrides for the collection now takes in a fields
function instead of array similar to other plugins and patterns we use
to allow you to map over existing fields as well if needed.
```ts
// before
searchPlugin({
searchOverrides: {
slug: 'search-results',
fields: [
{
name: 'excerpt',
type: 'textarea',
admin: {
position: 'sidebar',
},
},
]
},
}),
// current
searchPlugin({
searchOverrides: {
slug: 'search-results',
fields: ({ defaultFields }) => [
...defaultFields,
{
name: 'excerpt',
type: 'textarea',
admin: {
position: 'sidebar',
},
},
]
},
}),
```
