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]/category/+page.svelte

@@ -7,9 +7,14 @@
 
     const isEnglish = $derived(data.lang === 'en');
     const labels = $derived({
-        title: isEnglish ? 'Categories' : 'Kategorien'
+        title: isEnglish ? 'Categories' : 'Kategorien',
+        siteTitle: isEnglish ? 'Bocken Recipes' : 'Bocken Rezepte'
     });
 </script>
+
+<svelte:head>
+    <title>{labels.title} - {labels.siteTitle}</title>
+</svelte:head>
 <style>
 	h1 {
 		text-align: center;

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

@@ -9,6 +9,7 @@
 
     const isEnglish = $derived(data.lang === 'en');
     const label = $derived(isEnglish ? 'Recipes in Category' : 'Rezepte in Kategorie');
+    const siteTitle = $derived(isEnglish ? 'Bocken Recipes' : 'Bocken Rezepte');
 
     // Search state
     let matchedRecipeIds = $state(new Set());
@@ -34,6 +35,11 @@
 		font-size: 3em;
 	}
 </style>
+
+<svelte:head>
+    <title>{data.category} - {siteTitle}</title>
+</svelte:head>
+
 <h1>{label} <q>{data.category}</q>:</h1>
 <Search category={data.category} lang={data.lang} recipes={data.recipes} isLoggedIn={!!data.session?.user} onSearchResults={handleSearchResults}></Search>
 <section>