Upgrade Node.js from 18 to 22 for Vue web applications

- Update Dockerfile to use node:22-alpine
- Update package.json engines requirement to >=22

Author: MarcelGeo

web-app/Dockerfile

@@ -1,4 +1,4 @@
-FROM node:18-alpine as builder
+FROM node:22-alpine as builder
 MAINTAINER Martin Varga "martin.varga@lutraconsulting.co.uk"
 
 # build frontend apps

web-app/package.json

@@ -70,7 +70,7 @@
     "vue-tsc": "^2.1.6"
   },
   "engines": {
-    "node": ">=18"
+    "node": ">=22"
   },
   "version": "0.0.0",
   "dependencies": {}