npm package publish preparations (#1150)

Signed-off-by: Jari Kolehmainen <jari.kolehmainen@gmail.com>

extensions/example-extension/package-lock.json

@@ -4,6 +4,10 @@
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
+    "@k8slens/extensions": {
+      "version": "file:../../src/extensions/npm/extensions",
+      "dev": true
+    },
     "@webassemblyjs/ast": {
       "version": "1.9.0",
       "resolved": "https://registry.npmjs.org/@webassemblyjs/ast/-/ast-1.9.0.tgz",