fix(richtext-*): fix client features were not loaded properly, improve performance of LexicalProvider, slate cell component was non-functional, support richtext adapter Cell RSCs (#6573)

packages/richtext-slate/src/cell/index.tsx

@@ -1,9 +1,11 @@
 'use client'
 import type { DefaultCellComponentProps } from 'payload/types'
 
+import { useTableCell } from '@payloadcms/ui/elements/Table'
 import React from 'react'
 
-export const RichTextCell: React.FC<DefaultCellComponentProps<any[]>> = ({ cellData }) => {
+export const RichTextCell: React.FC<DefaultCellComponentProps<any[]>> = () => {
+  const { cellData } = useTableCell()
   const flattenedText = cellData?.map((i) => i?.children?.map((c) => c.text)).join(' ')
 
   // Limiting the number of characters shown is done in a CSS rule