faith: progressive enhancement for all faith pages without JS

- Rosary: mystery selection, luminous toggle, and latin toggle fall back
  to URL params (?mystery=, ?luminous=, ?latin=) for no-JS navigation
- Prayers/Angelus: latin toggle uses URL param fallback
- Search on prayers page hidden without JS (requires DOM queries)
- Toggle component supports href prop for link-based no-JS self-submit
- LanguageSelector uses <a> links with computed paths and :focus-within
  dropdown for no-JS; displays correct language via server-provided prop
- Recipe language links use translated slugs from $page.data
- URL params cleaned via replaceState after hydration to avoid clutter

src/lib/contexts/languageContext.js

@@ -6,9 +6,10 @@ const LANGUAGE_CONTEXT_KEY = Symbol('language');
 /**
  * Creates or updates a language context for prayer components
  * @param {Object} options
- * @param {'de' | 'en'} options.urlLang - The URL language (de for /glaube, en for /faith)
+ * @param {'de' | 'en'} [options.urlLang] - The URL language (de for /glaube, en for /faith)
+ * @param {boolean} [options.initialLatin] - Initial state for Latin/bilingual display
  */
-export function createLanguageContext({ urlLang = 'de' } = {}) {
+export function createLanguageContext({ urlLang = 'de', initialLatin = true } = {}) {
 	// Check if context already exists (e.g., during navigation)
 	if (hasContext(LANGUAGE_CONTEXT_KEY)) {
 		const existing = getContext(LANGUAGE_CONTEXT_KEY);
@@ -17,7 +18,7 @@ export function createLanguageContext({ urlLang = 'de' } = {}) {
 		return existing;
 	}
 
-	const showLatin = writable(true); // true = bilingual (Latin + vernacular), false = monolingual
+	const showLatin = writable(initialLatin); // true = bilingual (Latin + vernacular), false = monolingual
 	const lang = writable(urlLang); // 'de' or 'en' based on URL
 
 	setContext(LANGUAGE_CONTEXT_KEY, {