chore: move NotificationButton type out of atom-ide

This is an Atom package not atom-ide

Author: aminya

lib/adapters/notifications-adapter.ts

@@ -10,9 +10,10 @@ import {
   NotificationOptions,
   NotificationExt,
 } from 'atom';
-import {
-  NotificationButton,
-} from 'atom-ide';
+
+export interface NotificationButton {
+  text: string
+}
 
 /** Public: Adapts Atom's user notifications to those of the language server protocol. */
 export default class NotificationsAdapter {

typings/atom-ide/index.d.ts

@@ -1,5 +1,2 @@
 declare module 'atom-ide' {
-  export interface NotificationButton {
-    text: string
-  }
 }