prayers: add search and individual prayer pages

- Add SearchInput component for reusable search UI
- Add search functionality to prayers list with two-tier results:
  - Primary matches (name/searchTerms) shown first
  - Secondary matches (text content) shown after with reduced opacity
- Add individual prayer pages with language-appropriate slugs
  (e.g., /glaube/gebete/ave-maria, /faith/prayers/hail-mary)
- Make prayer cards clickable to navigate to individual pages
- Fix language visibility for prayers without Latin (BruderKlaus, Joseph)
- Add Prayer wrapper to MichaelGebet for consistent styling
- Use CSS columns for masonry layout with dynamic reordering

TODO.md

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+# TODO
+
+## Refactor Recipe Search Component
+
+Refactor `src/lib/components/Search.svelte` to use the new `SearchInput.svelte` component for the visual input part. This will:
+- Reduce code duplication between recipe search and prayer search
+- Keep the visual styling consistent across the site
+- Separate concerns: SearchInput handles the UI, Search.svelte handles recipe-specific filtering logic
+
+Files involved:
+- `src/lib/components/Search.svelte` - refactor to use SearchInput
+- `src/lib/components/SearchInput.svelte` - the reusable input component