feat(home): add Fediverse social media block

Author: kumy

website/app-templates/smarty/blocks/go_social.tpl

@@ -0,0 +1,22 @@
+<div class="alert alert-info" role="alert">
+  <div class="panel-heading"><h4>{t}Join the GeoKrety community{/t}</h4></div>
+
+  <div class="panel-body text-center">
+    <div class="text-primary">
+      {fa icon="rocket" size="3x"}
+    </div>
+    <p class="lead">{t}We are now sharing updates, tips, and release news across the Fediverse.{/t}</p>
+  </div>
+
+  <div class="panel-body text-center">
+    <a class="btn btn-primary btn-block" rel="me noopener" href="{GK_SITE_FEDIVERSE_URL}" target="_blank"
+       style="white-space: normal; line-height: 1.4;">
+      {fa icon="bullhorn"}
+      {t}@GeoKrety on social.opencaching.earth{/t}
+    </a>
+  </div>
+
+  <div class="panel-body small text-muted text-center">
+    {t}Follow us from any Mastodon or Fediverse client and never miss an adventure!{/t}
+  </div>
+</div>

website/app-templates/smarty/pages/home.tpl

@@ -49,6 +49,7 @@
   <div class="col-md-3">
     {include file='blocks/donate.tpl'}
     {include file='blocks/found_geokret.tpl'}
+    {include file='blocks/go_social.tpl'}
   </div>
 </div>
 

website/app/GeoKrety/Service/Config.php

@@ -18,6 +18,7 @@ public function __construct() {
         // SITE CONFIG
         define('HOSTNAME', getenv('HOSTNAME') ?: 'localhost');
         define('GK_SITE_BASE_SERVER_URL', getenv('GK_SITE_BASE_SERVER_URL') ?: 'https://geokrety.org');
+        define('GK_SITE_FEDIVERSE_URL', getenv('GK_SITE_FEDIVERSE_URL') ?: 'https://social.opencaching.earth/@geokrety');
         define('GK_SITE_BASE_SERVER_FQDN', getenv('GK_SITE_BASE_SERVER_FQDN') ?: 'geokrety.org');
         define('GK_SITE_ADMINISTRATORS', explode(',', getenv('GK_SITE_ADMINISTRATORS') ?: '26422'));
         define('GK_SITE_SESSION_REMEMBER', getenv('GK_SITE_SESSION_REMEMBER') ?: 60 * 60 * 24); // 24 hours