feat: Add Editor component and add editor demo

types/custom-types.d.ts

@@ -0,0 +1,27 @@
+import { SlateDescendant } from '@wangeditor/editor'
+
+declare module 'slate' {
+  interface CustomTypes {
+    // 扩展 text
+    Text: {
+      text: string
+      bold?: boolean
+      italic?: boolean
+      code?: boolean
+      through?: boolean
+      underline?: boolean
+      sup?: boolean
+      sub?: boolean
+      color?: string
+      bgColor?: string
+      fontSize?: string
+      fontFamily?: string
+    }
+
+    // 扩展 Element 的 type 属性
+    Element: {
+      type: string
+      children: SlateDescendant[]
+    }
+  }
+}