fix: correct CSS syntax error in variables.css (#3910)

Co-authored-by: Suliman Benhalim <[email protected]>

Author: sulimanbenhalim

packages/daisyui/functions/variables.css

@@ -22,8 +22,8 @@
   --radius-selector: ;
   --radius-field: ;
   --radius-box: ;
-  --size-selector: ,
-  --size-field: ,
+  --size-selector: ;
+  --size-field: ;
   --border: ;
   --depth: ;
   --noise: ;