fix: streamline builder initialization in figma node parser

Updated the initialization of the builder variable to be more concise. This change eliminates unnecessary variable reassignment, leading to cleaner and more efficient code.

packages/code/src/parsers/figma-node.parser.ts

@@ -63,9 +63,7 @@ class FigmaNodeParser {
       const mainComponent = await node.getMainComponentAsync()
       const iconName = mainComponent?.name
 
-      let builder: IBuilder
-
-      builder = new Builder(this.config)
+      const builder: IBuilder = new Builder(this.config)
 
       const css = builder.build(node)