Move search to the left (more centered position)

Author: HLeithner

docusaurus.config.js

@@ -187,6 +187,10 @@ const config = {
             position: 'left',
             activeBaseRegex: `/migrations/`,
           },
+          {
+            type: 'search',
+            position: 'left',
+          },
           {
             href: 'https://api.joomla.org',
             label: 'API',