Fix google search syntax from search bar (#3209)

Co-authored-by: 1cg <[email protected]>

Author: Telroshan

www/themes/htmx-theme/templates/base.html

@@ -51,7 +51,7 @@
                     <div><a href="/essays/">essays</a></div>
                     <div hx-disable>
                         <form action="https://google.com/search" role="search" aria-label="Sitewide">
-                            <input type="hidden" name="q" value="site:htmx.org">
+                            <input type="hidden" name="q" value="+[inurl:https://htmx.org]">
                             <label>
                                 <span style="display:none;">Search</span>
                                 <input type="text" name="q" placeholder="🔍️" class="search-box">