feat!: fix non-functional custom RSC component handling, separate label and description props, fix non-functional label function handling (#6264)

Breaking Changes:

- Globals config: `admin.description` no longer accepts a custom component. You will have to move it to `admin.components.elements.Description`
- Collections config: `admin.description` no longer accepts a custom component. You will have to move it to `admin.components.edit.Description`
- All Fields: `field.admin.description` no longer accepts a custom component. You will have to move it to `field.admin.components.Description`
- Collapsible Field: `field.label` no longer accepts a custom component. You will have to move it to `field.admin.components.RowLabel`
- Array Field: `field.admin.components.RowLabel` no longer accepts strings or records
- If you are using our exported field components in your own app, their `labelProps` property has been stripped down and no longer contains the `label` and `required` prop. Those can now only be configured at the top-level

packages/richtext-slate/src/field/RichText.tsx

@@ -1,7 +1,7 @@
 'use client'
 
 import type { FormFieldBase } from '@payloadcms/ui/fields/shared'
-import type { ClientValidate, FieldBase } from 'payload/types'
+import type { ClientValidate } from 'payload/types'
 import type { BaseEditor, BaseOperation } from 'slate'
 import type { HistoryEditor } from 'slate-history'
 import type { ReactEditor } from 'slate-react'
@@ -50,7 +50,6 @@ declare module 'slate' {
 const RichTextField: React.FC<
   FormFieldBase & {
     elements: EnabledFeatures['elements']
-    label?: FieldBase['label']
     leaves: EnabledFeatures['leaves']
     name: string
     placeholder?: string