add English translation support for recipes with DeepL integration

- Add embedded translations schema to Recipe model with English support
- Create DeepL translation service with batch translation and change detection
- Build translation approval UI with side-by-side editing for all recipe fields
- Integrate translation workflow into add/edit pages with field comparison
- Create complete English recipe routes at /recipes/* mirroring German structure
- Add language switcher component with hreflang SEO tags
- Support image loading from German short_name for English recipes
- Add English API endpoints for all recipe filters (category, tag, icon, season)
- Include layout with English navigation header for all recipe subroutes

src/routes/recipes/icon/[icon]/+page.svelte

@@ -0,0 +1,17 @@
+<script lang="ts">
+	import type { PageData } from './$types';
+	import Recipes from '$lib/components/Recipes.svelte';
+	import IconLayout from '$lib/components/IconLayout.svelte';
+	import MediaScroller from '$lib/components/MediaScroller.svelte';
+	import Card from '$lib/components/Card.svelte';
+	import Search from '$lib/components/Search.svelte';
+	export let data: PageData;
+	import { rand_array } from '$lib/js/randomize';
+</script>
+<IconLayout icons={data.icons} active_icon={data.icon} >
+<Recipes slot=recipes>
+	{#each rand_array(data.season) as recipe}
+		<Card {recipe} icon_override=true isFavorite={recipe.isFavorite} showFavoriteIndicator={!!data.session?.user} routePrefix="/recipes"></Card>
+	{/each}
+</Recipes>
+</IconLayout>