HDDS-9924. Add icons next to community links in footer (apache#97)

.gitignore

@@ -35,3 +35,6 @@
 npm-debug.log*
 yarn-debug.log*
 yarn-error.log*
+
+# IDE - JetBrains IntelliJ
+.idea/

src/theme/Footer/LinkItem/index.js

@@ -0,0 +1,58 @@
+/*
+ * 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.
+ */
+
+import React from 'react';
+import Link from '@docusaurus/Link';
+import useBaseUrl from '@docusaurus/useBaseUrl';
+import isInternalUrl from '@docusaurus/isInternalUrl';
+import IconExternalLink from '@theme/Icon/ExternalLink';
+
+const iconMapping = {
+  'GitHub Discussions': '/img/social/github.svg',
+  'Jira Issues': '/img/social/jira.svg',
+  'Slack': '/img/social/slack.svg',
+  'Mailing List': '/img/social/mail.svg',
+  'YouTube': '/img/social/youtube.svg',
+  'Twitter': '/img/social/twitter-x.svg'
+};
+export default function FooterLinkItem({item}) {
+  const {to, href, label, prependBaseUrlToHref, ...props} = item;
+  const toUrl = useBaseUrl(to);
+  const normalizedHref = useBaseUrl(href, {forcePrependBaseUrl: true});
+  const iconPath = iconMapping[label];  // Get icon path from mapping
+
+  return (
+      <Link
+          className="footer__link-item"
+          {...(href
+              ? {
+                href: prependBaseUrlToHref ? normalizedHref : href,
+              }
+              : {
+                to: toUrl,
+              })}
+          {...props}>
+
+        {iconPath && <img src={iconPath} alt={`${label} Icon`} style={{width: '1em', height: '1em', marginRight: '0.5em', verticalAlign: 'middle'}} />}
+
+        {label}
+        {href && !isInternalUrl(href) && <IconExternalLink />}
+      </Link>
+  );
+}