fix(clerk-js): Add calc to line heights (#7350)

Author: alexcarpenter

.changeset/polite-queens-roll.md

@@ -0,0 +1,5 @@
+---
+'@clerk/clerk-js': patch
+---
+
+Fix line height calculations.

packages/clerk-js/src/ui/foundations/typography.ts

@@ -9,10 +9,10 @@ const fontWeights = Object.freeze({
 
 const lineHeights = Object.freeze({
   normal: 'normal',
-  extraSmall: '16 / 12', // = 1.33333
-  small: '18 / 13', // = 1.38462
-  medium: '24 / 17', // = 1.41176
-  large: '16 / 11', // = 1.45455
+  extraSmall: 'calc(16 / 12)', // = 1.33333
+  small: 'calc(18 / 13)', // = 1.38462
+  medium: 'calc(24 / 17)', // = 1.41176
+  large: 'calc(16 / 11)', // = 1.45455
 } as const);
 
 const letterSpacings = Object.freeze({