Fix .form-select box-shadow inside .input-group (#2618)

Co-authored-by: codecalm <codecalm@gmail.com>

.changeset/fix-form-select-input-group-shadow.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Fixed `.form-select` keeping its default box-shadow inside `.input-group` by adding it to the existing `.form-control`/`.btn` box-shadow reset.

core/scss/ui/_forms.scss

@@ -171,6 +171,7 @@ Input group
   @include border-radius($input-border-radius);
 
   .form-control,
+  .form-select,
   .btn {
     box-shadow: none;
   }