Update border radius variables for consistency across components (#2167)

.changeset/moody-items-peel.md

@@ -0,0 +1,5 @@
+---
+"@tabler/core": patch
+---
+
+Update border radius variables for consistency across components

core/scss/_variables.scss

@@ -293,8 +293,8 @@ $theme-colors: map-merge($theme-colors, map-merge($extra-colors, $social-colors)
 $border-width: 1px !default;
 $border-width-wide: 2px !default;
 
-$border-radius-sm: 2px !default;
-$border-radius: 4px !default;
+$border-radius-sm: 4px !default;
+$border-radius: 6px !default;
 $border-radius-lg: 8px !default;
 $border-radius-pill: 100rem !default;
 
@@ -614,7 +614,7 @@ $card-color: inherit !default;
 
 $card-border-width: var(--#{$prefix}border-width) !default;
 $card-border-color: var(--#{$prefix}border-color-translucent) !default;
-$card-border-radius: var(--#{$prefix}border-radius) !default;
+$card-border-radius: var(--#{$prefix}border-radius-lg) !default;
 
 $card-spacer-x: 1.25rem !default;
 $card-spacer-y: 1rem !default;