fix select2 dropdown while maximized card

build/scss/plugins/_select2.scss

@@ -259,6 +259,11 @@ select.form-control-sm ~ {
   }
 }
 
+// Dropdown Fix inside maximized card
+.maximized-card .select2-dropdown {
+  z-index: 9999;
+}
+
 // Background colors (theme colors)
 @each $name, $color in $theme-colors {
   @include select2-variant($name, $color);

dist/css/adminlte.css

@@ -20880,6 +20880,10 @@ select.form-control-sm ~ .select2-container--default .select2-selection--multipl
   margin-top: 6px;
 }
 
+.maximized-card .select2-dropdown {
+  z-index: 9999;
+}
+
 .select2-primary + .select2-container--default.select2-container--open .select2-selection--single {
   border-color: #80bdff;
 }