[TASK] Replace RequireJS

RequireJS integration is deprecated in TYPO3 12 and will be removed
with TYPO3 13, thus search statistics JavaScript is adapted for
ECMAScript v6.

An update to Chart.js 3.9.1 is also done, which provides ES6 support.
Integration in Chart.js 4 is currently faulty and is postponed.

Resolves: #3489

Configuration/JavaScriptModules.php

@@ -0,0 +1,8 @@
+<?php
+
+return [
+    'dependencies' => ['backend'],
+    'imports' => [
+        '@apache-solr-for-typo3/solr/' => 'EXT:solr/Resources/Public/JavaScript/',
+    ],
+];

Resources/Private/Templates/Backend/Search/InfoModule/Index.html

@@ -111,9 +111,9 @@ <h2>Site: {site.label}</h2>
     <!-- TODO add buttons to select time frame [last 24h] [last 30 days] [all] -->
 
     <f:be.pageRenderer
-            includeJsFiles="{
-        0: '{f:uri.resource(path:\'JavaScript/SearchStatistics.js\')}'
-    }"
+        includeJavaScriptModules="{
+            0: '@apache-solr-for-typo3/solr/SearchStatistics.js'
+        }"
     />
 
     <div class="row">