fix version and redirect, speed build

frontend/Dockerfile

@@ -2,16 +2,19 @@ FROM node:21-bookworm-slim as build-stage
 
 WORKDIR /app
 
-ARG PUBLIC_DOC_VERSION
-ARG PUBLIC_DOC_BUILD_TIMESTAMP
-
+COPY package*.json .
+RUN npm ci
 COPY . .
-RUN npm install
 RUN npm run check
 RUN npm run build
 
 FROM nginx:1.25-bookworm as production
 
+ARG PUBLIC_DOC_VERSION_ARG
+ARG PUBLIC_DOC_BUILD_TIMESTAMP_ARG
+ENV PUBLIC_DOC_VERSION=${PUBLIC_DOC_VERSION_ARG}
+ENV PUBLIC_DOC_BUILD_TIMESTAMP=${PUBLIC_DOC_BUILD_TIMESTAMP_ARG}
+
 RUN apt-get update && apt-get install nodejs npm -y
 RUN npm install pm2 -g
 

frontend/src/routes/+page.svelte

@@ -1,7 +1,9 @@
-<script lang="ts">
-  import { redirect } from '@sveltejs/kit'
+<script>
+  import { onMount } from 'svelte';
+  import { goto } from '$app/navigation';
 
-  export function load(): void {
-    throw redirect(307, '/languages')
-  }
+  onMount(() => {
+    goto('/languages');
+  });
 </script>
+