Fix Dockerfile npm ci conflict and ENV syntax

Dockerfile

@@ -4,7 +4,7 @@ FROM node:18-alpine AS base
 FROM base AS deps
 WORKDIR /app
 COPY package.json package-lock.json* ./
-RUN npm ci
+RUN npm ci --legacy-peer-deps
 
 # Rebuild the source code only when needed
 FROM base AS builder
@@ -17,8 +17,8 @@ RUN npm run build
 FROM base AS runner
 WORKDIR /app
 
-ENV NODE_ENV production
-ENV NEXT_TELEMETRY_DISABLED 1
+ENV NODE_ENV=production
+ENV NEXT_TELEMETRY_DISABLED=1
 
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/.next/standalone ./
@@ -26,7 +26,7 @@ COPY --from=builder /app/.next/static ./.next/static
 
 EXPOSE 3000
 
-ENV PORT 3000
-ENV HOSTNAME "0.0.0.0"
+ENV PORT=3000
+ENV HOSTNAME="0.0.0.0"
 
 CMD ["node", "server.js"]