fix(docker): fix production dockerfile

- remove tailwind.config.js as it is no longer needed
- upgraded Node to v24 to fix a vulnerability

docker/production/Dockerfile

@@ -34,10 +34,10 @@ USER www-data
 # =================================================================
 # Stage 2: Frontend assets compilation
 # =================================================================
-FROM node:20-alpine AS static-assets
+FROM node:24-alpine AS static-assets
 
 WORKDIR /app
-COPY package*.json vite.config.js tailwind.config.js postcss.config.cjs ./
+COPY package*.json vite.config.js postcss.config.cjs ./
 RUN npm ci
 COPY . .
 RUN npm run build