[SPARK-51467][UI] Make tables of the environment page filterable

### What changes were proposed in this pull request?

This PR adds multi-column filtering ability to the tables of the environment page.

### Why are the changes needed?

improve the debugability of the Spark UI

### Does this PR introduce _any_ user-facing change?

yes, but only UI changes

### How was this patch tested?

![image](https://github.com/user-attachments/assets/7bac4a4e-13c8-4b75-9b87-693bea4846b8)

### Was this patch authored or co-authored using generative AI tooling?
no

Closes #50233 from yaooqinn/SPARK-51467.

Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Kent Yao <yao@apache.org>

Author: yaooqinn

core/src/main/resources/org/apache/spark/ui/static/environmentpage.js

@@ -0,0 +1,62 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* global $ */
+
+$(document).ready(function(){
+  $('th').on('click', function(e) {
+    let inputBox = $(this).find('.env-table-filter-input');
+    if (inputBox.length === 0) {
+      $('<input class="env-table-filter-input form-control" type="text">')
+        .appendTo(this)
+        .focus();
+    } else {
+      inputBox.toggleClass('d-none');
+      inputBox.focus();
+    }
+    e.stopPropagation();
+  });
+
+  $(document).on('click', function() {
+    $('.env-table-filter-input').toggleClass('d-none', true);
+  });
+
+  $(document).on('input', '.env-table-filter-input', function() {
+    const table = $(this).closest('table');
+    const filters = table.find('.env-table-filter-input').map(function() {
+      const columnIdx = $(this).closest('th').index();
+      const searchString = $(this).val().toLowerCase();
+      return { columnIdx, searchString };
+    }).get();
+
+    table.find('tbody tr').each(function() {
+      let showRow = true;
+      for (const filter of filters) {
+        const cellText = $(this).find('td').eq(filter.columnIdx).text().toLowerCase();
+        if (filter.searchString && cellText.indexOf(filter.searchString) === -1) {
+          showRow = false;
+          break;
+        }
+      }
+      if (showRow) {
+        $(this).show();
+      } else {
+        $(this).hide();
+      }
+    });
+  });
+});

core/src/main/scala/org/apache/spark/ui/env/EnvironmentPage.scala

@@ -169,6 +169,7 @@ private[ui] class EnvironmentPage(
         <div class="aggregated-classpathEntries collapsible-table collapsed">
           {classpathEntriesTable}
         </div>
+        <script src={UIUtils.prependBaseUri(request, "/static/environmentpage.js")}></script>
       </span>
 
     UIUtils.headerSparkPage(request, "Environment", content, parent)