feat: add page titles to recipe and glaube routes

- Add titles to category, tag, icon, season routes
- Add bilingual support (German/English) for recipe route titles
- Use consistent "Bocken Recipes" / "Bocken Rezepte" branding
- Change English tagline from "Bocken's Recipes" to "Bocken Recipes"
- Add titles to /glaube and /glaube/gebete pages
- Make tips-and-tricks page language-aware

src/routes/[recipeLang=recipeLang]/icon/+page.svelte

@@ -7,7 +7,17 @@
     import Card from '$lib/components/Card.svelte';
     import Search from '$lib/components/Search.svelte';
     let { data } = $props<{ data: PageData }>();
+
+    const isEnglish = $derived(data.lang === 'en');
+    const labels = $derived({
+        title: isEnglish ? 'Icons' : 'Icons',
+        siteTitle: isEnglish ? 'Bocken Recipes' : 'Bocken Rezepte'
+    });
 </script>
+
+<svelte:head>
+    <title>{labels.title} - {labels.siteTitle}</title>
+</svelte:head>
 <style>
 	a{
 		font-family: "Noto Color Emoji", emoji, sans-serif;

src/routes/[recipeLang=recipeLang]/icon/[icon]/+page.svelte

@@ -8,6 +8,9 @@
     let { data } = $props<{ data: PageData }>();
     import { rand_array } from '$lib/js/randomize';
 
+    const isEnglish = $derived(data.lang === 'en');
+    const siteTitle = $derived(isEnglish ? 'Bocken Recipes' : 'Bocken Rezepte');
+
     // Search state
     let matchedRecipeIds = $state(new Set());
     let hasActiveSearch = $state(false);
@@ -26,6 +29,11 @@
         return data.season.filter(r => matchedRecipeIds.has(r._id));
     });
 </script>
+
+<svelte:head>
+    <title>{data.icon} - {siteTitle}</title>
+</svelte:head>
+
 <IconLayout icons={data.icons} active_icon={data.icon} routePrefix="/{data.recipeLang}" lang={data.lang} recipes={data.season} isLoggedIn={!!data.session?.user} onSearchResults={handleSearchResults}>
 	{#snippet recipesSlot()}
 		<Recipes>