Do not display empty <fieldset> (#2045)

.changeset/soft-suits-count.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Do not display empty `fieldset` element

src/scss/ui/_forms.scss

@@ -130,6 +130,10 @@ Form control
   border-radius: var(--#{$prefix}border-radius);
 }
 
+fieldset:empty {
+  display: none;
+}
+
 /**
 Form help
  */