Update Dockerfile to use Node 18 and optimize build process

- Upgraded Node.js version from 14 to 18 for improved performance.
- Implemented a clean install of npm dependencies with legacy peer dependencies support.
- Added specific package installations for @jridgewell/gen-mapping and @babel/generator.
- Increased memory allocation for the build process by setting NODE_OPTIONS to 4096 MB.

webapp/Dockerfile

@@ -1,9 +1,21 @@
 # Stage 1: Build the React application
-FROM node:14 as build
+FROM node:18 as build
 WORKDIR /app
+
+# Copy package files
 COPY package*.json ./
-RUN npm install
+
+# Clean install with specific dependency resolution
+RUN npm cache clean --force && \
+    npm install --legacy-peer-deps && \
+    npm install @jridgewell/[email protected] && \
+    npm install @babel/[email protected]
+
+# Copy the rest of the application
 COPY . .
+
+# Build with increased memory limit
+ENV NODE_OPTIONS="--max-old-space-size=4096"
 RUN npm run build
 
 # Stage 2: Serve the app with nginx