add Commands interface

packages/core/src/commands/scrollIntoView.ts

@@ -1,12 +1,18 @@
-import { Command } from '../types'
+import { Command, Commands } from '../types'
 
 /**
  * Scroll the selection into view.
  */
-export const scrollIntoView = (): Command => ({ tr, dispatch }) => {
+export const scrollIntoView: Commands['scrollIntoView'] = () => ({ tr, dispatch }) => {
   if (dispatch) {
     tr.scrollIntoView()
   }
 
   return true
 }
+
+declare module '@tiptap/core' {
+  interface Commands {
+    scrollIntoView: () => Command,
+  }
+}