Update comment for style array handling

Clarify comment about allowed values in style array.

Author: yeliex

src/runtime/native/react/rules.ts

@@ -71,10 +71,12 @@ export function updateRules(
     if (target) {
       if (Array.isArray(target)) {
         for (const item of target) {
-          // undefined is allowed in style array
+          
+          // undefined or falsy is allowed in the style array
           if (!item) {
             continue;
           }
+          
           if (VAR_SYMBOL in item) {
             inlineVariables.add(item);
           } else if (