fix(Dockerfile): Small changes fixing dev and prod builds

Signed-off-by: Alexander Jung <alex@unikraft.cloud>

Dockerfile

@@ -1,43 +1,27 @@
 FROM node:20-alpine AS base
 
 # Install dependencies only when needed
-FROM base AS deps
+FROM base AS dev
 # Check https://github.com/nodejs/docker-node/tree/b4117f9333da4138b03a546ec926ef50a31506c3#nodealpine to understand why libc6-compat might be needed.
 
 RUN apk add --no-cache libc6-compat
 
 WORKDIR /docs
 
-# Install dependencies based on the preferred package manager
-COPY package.json package-lock.json* ./
-
-RUN npm install --verbose
-
-# Dev image
-FROM base AS dev
-
 ENV NODE_ENV=development
 ENV NEXT_TELEMETRY_DISABLED=1
 
-WORKDIR /docs
-
-COPY --from=deps /docs/node_modules ./node_modules
-
 COPY . .
 
-RUN npm run search-meta:gen
+RUN npm install
 
 CMD ["npm", "run", "dev"]
 
 # Rebuild the source code only when needed
-FROM base AS builder
+FROM dev AS builder
 
 WORKDIR /docs
 
-COPY --from=deps /docs/node_modules ./node_modules
-
-COPY . .
-
 ENV NEXT_TELEMETRY_DISABLED 1
 
 RUN set -xe; \