Add npmrc so that newer node/npm version works (#806)

* Add .npmrc so that it works with newer npm

* Remove engine upper limit as it works with npmrc

* Lockfile maintainace, created new mapping with npm install

* Add npmrc so Docker doesnt fail on new npm version

* Revert 8a1946d558 will set renovate

package.json

@@ -4,8 +4,8 @@
   "description": "Yet another matrix client",
   "main": "index.js",
   "engines": {
-    "npm": ">=6.14.8 <=8.5.5",
-    "node": ">=14.15.0 <=17.9.0"
+    "npm": ">=6.14.8",
+    "node": ">=14.15.0"
   },
   "scripts": {
     "start": "webpack serve --config ./webpack.dev.js --open",