add style folder and react-dyn-tabs.css

in the root directory and move all css files from src
subfolders into it.

Author: dev-javascript

src/panel/index.css

@@ -1,5 +1,4 @@
 import React, { useContext, memo } from 'react';
-import './index.css';
 import { ApiContext, ForceUpdateContext } from '../utils/context.js';
 import panelPropsManager from './panelPropsManager.js';
 const Panel = memo(function Panel(props) {

src/panel/panel.js

@@ -1,5 +1,4 @@
 import React, { memo } from 'react';
-import './index.css';
 import Panel from '../panel/panel.js';
 import { ApiContext, StateContext } from '../utils/context.js';
 const PanelList = memo(function PanelList(props) {

src/panelList/panelList.js

@@ -1,5 +1,4 @@
 import React, { memo } from "react";
-import "./index.css";
 import { ApiContext, ForceUpdateContext } from "../utils/context.js";
 import TabPropsManager from './tabPropsManager.js';
 const Tab = memo(