feat: add social media links to footer (#166)

This feature was suggested by Kris. Thanks for that 
I have added social media links of jenkins to the footer in the
community part.

Author: biru-codeastromer

src/jio-footer.ts

@@ -167,6 +167,18 @@ export class Footer extends LitElement {
                            <li>
                               <a href=${relOrAbsoluteLink('https://twitter.com/jenkinsci', this.property).href}>${msg('𝕏 (formerly Twitter)')}</a>
                            </li>
+                           <li>
+                              <a href=${relOrAbsoluteLink('https://www.linkedin.com/company/jenkins-project/', this.property).href}>${msg('LinkedIn')}</a>
+                           </li>
+                           <li>
+                              <a href=${relOrAbsoluteLink('https://bsky.app/profile/jenkinsci.bsky.social', this.property).href}>${msg('Bluesky')}</a>
+                           </li>
+                           <li>
+                              <a href=${relOrAbsoluteLink('https://mastodon.social/@Jenkinsci', this.property).href}>${msg('Mastodon')}</a>
+                           </li>
+                           <li>
+                              <a href=${relOrAbsoluteLink('https://www.youtube.com/@jenkinscicd', this.property).href}>${msg('Youtube')}</a>
+                           </li>
                            <li>
                               <a href=${relOrAbsoluteLink('https://reddit.com/r/jenkinsci', this.property).href}>${msg('Reddit')}</a>
                            </li>