feat(theme): add copilot theme.

Author: jaywcjlove

core/README.md

@@ -65,6 +65,7 @@ npm install @uiw/react-codemirror --save
 | `@uiw/codemirror-theme-basic`               | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-basic.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-basic) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-basic.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-basic)                                                         | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/bbedit)              |
 | `@uiw/codemirror-theme-bbedit`              | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-bbedit.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-bbedit) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-bbedit.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-bbedit)                                                     | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/bbedit)              |
 | `@uiw/codemirror-theme-bespin`              | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-bespin.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-bespin) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-bespin.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-bespin)                                                     | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/bespin)              |
+| `@uiw/codemirror-theme-copilot`             | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-copilot.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-copilot) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-copilot.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-copilot)                                                 | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/copilot)             |
 | `@uiw/codemirror-theme-duotone`             | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-duotone.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-duotone) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-duotone.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-duotone)                                                 | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/duotone/light)       |
 | `@uiw/codemirror-theme-dracula`             | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-dracula.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-dracula) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-dracula.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-dracula)                                                 | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/dracula)             |
 | `@uiw/codemirror-theme-darcula`             | [![npm version](https://img.shields.io/npm/v/@uiw/codemirror-theme-darcula.svg)](https://www.npmjs.com/package/@uiw/codemirror-theme-darcula) [![NPM Downloads](https://img.shields.io/npm/dm/@uiw/codemirror-theme-darcula.svg?style=flat)](https://www.npmjs.com/package/@uiw/codemirror-theme-darcula)                                                 | [`#preview`](https://uiwjs.github.io/react-codemirror/#/theme/data/darcula)             |