Add support for menu icons to fit macOS Tahoe

Author: cyanzhong

README.md

@@ -19,7 +19,7 @@ Add `markedit-api` to your (TypeScript) project's devDependencies:
 ```json
 {
   "devDependencies": {
-    "markedit-api": "https://github.com/MarkEdit-app/MarkEdit-api#v0.9.0"
+    "markedit-api": "https://github.com/MarkEdit-app/MarkEdit-api#v0.10.0"
   }
 }
 ```

markedit.d.ts

@@ -293,6 +293,13 @@ export type MenuItem = {
   action?: () => void;
   state?: () => MenuItemState;
 
+  /**
+   * Icon for the item.
+   *
+   * This can be either a base64 string or a SF Symbol name.
+   */
+  icon?: string;
+
   /**
    * Whether an item is a separator used to logically group other items.
    */

package.json

@@ -1,6 +1,6 @@
 {
   "name": "markedit-api",
-  "version": "0.9.0",
+  "version": "0.10.0",
   "description": "Type definitions for the latest MakrEdit API.",
   "main": "main.ts",
   "types": "markedit.d.ts",