Revert "Chore: Update Slate to 0.47.8 (#18412)" (#19167)

This reverts commit 601853fc84.

public/app/plugins/datasource/elasticsearch/components/ElasticsearchQueryField.tsx

@@ -1,7 +1,9 @@
 import _ from 'lodash';
 import React from 'react';
-
-import { SlatePrism } from '@grafana/ui';
+// @ts-ignore
+import PluginPrism from 'slate-prism';
+// @ts-ignore
+import Prism from 'prismjs';
 
 // dom also includes Element polyfills
 import QueryField from 'app/features/explore/QueryField';
@@ -22,7 +24,7 @@ class ElasticsearchQueryField extends React.PureComponent<Props, State> {
     super(props, context);
 
     this.plugins = [
-      SlatePrism({
+      PluginPrism({
         onlyIn: (node: any) => node.type === 'code_block',
         getSyntax: (node: any) => 'lucene',
       }),