feat: allow passing false as PayloadComponent which signals that the component should not be rendered (#7682)

If it's undefined/null => Fallback Component may be rendered
If it's false => No component should be rendered - as if an empty
component was passed in

This ensures that the user does not have to install `@payloadcms/ui`
anymore, which previously exported an empty component to be used in
component paths

packages/richtext-slate/src/field/elements/textAlign/index.tsx

@@ -3,5 +3,5 @@ import type { RichTextCustomElement } from '../../../types.js'
 export const textAlign: RichTextCustomElement = {
   name: 'alignment',
   Button: '@payloadcms/richtext-slate/client#TextAlignElementButton',
-  Element: '@payloadcms/ui/shared#emptyComponent',
+  Element: false,
 }