Failed to resolve import "@/components/theme-provider" from "src/components/layouts/chat-layout.tsx". Does the file exist? also I want to use this colors related for finance agents and logo I want in top of sidebar and adapt his color with toogle of mode also I want input when chat empty in middle

Failed to resolve import "next-themes" from "src/components/header/header.tsx". Does the file exist? I say previously I use react tsx with vite also I want to remove logo from header and also input with send button merge it in one border and adapt it to look good and attach file make at first