refactor: 빈 문자열 사용 제거거

Author: pkh0106

apps/frontend/src/features/canvas/ui/Canvas/index.tsx

@@ -60,7 +60,7 @@ export function Canvas({ className }: CanvasProps) {
   }, [users]);
 
   return (
-    <div className={cn("", className)} onMouseMove={handleMouseMove}>
+    <div className={cn(className)} onMouseMove={handleMouseMove}>
       <ReactFlow
         nodes={nodes}
         edges={edges}

apps/frontend/src/features/editor/ui/Editor/index.tsx

@@ -49,7 +49,6 @@ export function Editor({ ydoc, provider }: EditorProp) {
   return (
     <EditorRoot>
       <EditorContent
-        className=""
         enableContentCheck={true}
         onContentError={({ disableCollaboration }) => {
           disableCollaboration();

apps/frontend/src/shared/ui/Emoji/index.tsx

@@ -14,11 +14,11 @@ export function Emoji({ emoji, width, height, fontSize }: EmojiProps) {
   if (!emoji)
     return (
       <FileText
-        className={cn("", width, height)}
+        className={cn(width, height)}
         strokeWidth="1.5px"
         color="#91918e"
       />
     );
 
-  return <div className={cn("", width, height, fontSize)}>{emoji}</div>;
+  return <div className={cn(width, height, fontSize)}>{emoji}</div>;
 }