refactor(app): remove scaffold and migrate input styles

src/app/chat/components/chat-input-text-field.tsx

@@ -22,8 +22,6 @@ import {
   useRef,
 } from "react";
 
-import styles from "./chat-input-text-field.module.css";
-
 export interface ChatInputTextFieldProps {
   value: string;
   onChange: (value: string) => void;
@@ -62,10 +60,10 @@ export const ChatInputTextField = forwardRef<
   };
 
   return (
-    <div className={styles.wrap}>
+    <div className="flex min-w-0 flex-auto items-center rounded-full bg-white px-(--spacing-lg,16px)">
       <textarea
         ref={innerRef}
-        className={styles.textField}
+        className="min-h-[var(--chat-send-button-size,40px)] max-h-[min(30vh,120px)] w-full min-w-0 flex-auto resize-none border-0 bg-transparent pb-0 pl-0 pr-0 pt-[clamp(5px,1.111vw,6px)] font-[inherit] text-[16px] leading-[clamp(22px,4.444vw,24px)] text-[var(--color-text-foreground,#000)] caret-[var(--color-accent,#f84d96)] outline-none placeholder:text-[var(--color-text-hint,#757575)]"
         value={value}
         onChange={(e: FormEvent<HTMLTextAreaElement>) =>
           onChange(e.currentTarget.value)