- Added PHP 8.5 supports

- Fixed some minor bugs

view/lean/layout/error.phtml

@@ -2,6 +2,7 @@
     <!DOCTYPE html>
     <html>
         <head>
+            <meta charset="UTF-8" />
             <meta http-equiv="Content-Type" content="text/html; ">
             <meta name="viewport" content="width=device-width">
             <title>{{ title() }}</title>

view/lean/widget/calendar.phtml

@@ -22,7 +22,7 @@
             {% slot "week.heading", $day, $month, $year %}
                 <div class="day-box">
                     {# Random calendar date that starts on a sunday #}
-                    {{ substr(( new Date("2019-12-$day") )->formatLocale("%A"), 0, 3) }}
+                    {{ new Date("2019-12-$day")->formatLocaleIntl(\IntlDateFormatter::SHORT, \IntlDateFormatter::NONE, 'EEE') }}
                 </div>
             {% endslot %}
         {% endforeach %}