Build apps directly instead of using turbo

Author: deepnav4

Dockerfile.frontend

@@ -16,10 +16,12 @@ COPY apps/collabydraw ./apps/collabydraw
 # Install dependencies (postinstall will run prisma generate automatically)
 RUN npm install --legacy-peer-deps
 
-# Build the application
-WORKDIR /app
+# Build the frontend application directly
+WORKDIR /app/apps/collabydraw
 RUN npm run build
 
+WORKDIR /app
+
 # Production stage
 FROM node:20-alpine AS runner