Add Smartsupp live chat integration to head template

- Included Smartsupp JavaScript snippet in the head.tpl file.
- Configured Smartsupp settings such as key, color, and offsets for chat widget.

themes/classic/templates/_partials/head.tpl

@@ -88,4 +88,24 @@
   {$HOOK_HEADER nofilter}
 {/block}
 
-{block name='hook_extra'}{/block}
+{block name='hook_extra'}{/block}
+{literal}
+<script type="text/javascript">
+  var _smartsupp = _smartsupp || {};
+  _smartsupp.key = '0d334d3fee8a20124724fb0e40e42cb00d98a537';
+  _smartsupp.color = '#e78c32';
+  _smartsupp.offsetX = 100; // move along the X axis by 100 pixels
+  _smartsupp.offsetY = 38;
+  window.smartsupp || (function(d) {
+    var s, c, o = smartsupp = function() { o._.push(arguments) };
+    o._ = [];
+    s = d.getElementsByTagName('script')[0];
+    c = d.createElement('script');
+    c.type = 'text/javascript';
+    c.charset = 'utf-8';
+    c.async = true;
+    c.src = 'https://www.smartsuppchat.com/loader.js?';
+    s.parentNode.insertBefore(c, s);
+  })(document);
+</script>
+{/literal}