Fix @k8slens/extensions being broken after monorepo (#7058)

Signed-off-by: Sebastian Malton <sebastian@malton.name>

packages/core/src/main/extension-api.ts

@@ -3,28 +3,11 @@
  * Licensed under MIT License. See LICENSE in root directory for more information.
  */
 
-import * as Mobx from "mobx";
 import { spawn } from "node-pty";
-import * as LensExtensionsCommonApi from "../extensions/common-api";
-import * as LensExtensionsMainApi from "../extensions/main-api";
 
+export * as Mobx from "mobx";
+export * as MainApi from "../extensions/main-api";
 
-/**
- * Exports for virtual package "@k8slens/extensions" for main-process.
- * All exporting names available in global runtime scope:
- * e.g. global.Mobx, global.LensExtensions
- */
-const LensExtensions = {
-  Common: LensExtensionsCommonApi,
-  Main: LensExtensionsMainApi,
-};
-
-export type {
-  LensExtensionsMainApi,
-};
-
-const Pty = {
+export const Pty = {
   spawn,
 };
-
-export { Mobx, LensExtensions, Pty };