feat(faith): add 6 prayers (Marian devotions + meal blessings)

Six new prayers from the German prayer book images, with Latin and
English where canonical versions exist:

  43 Jungfrau, Mutter Gottes mein — German Marian devotional. No
     canonical Latin/English; best-effort EN translation provided so
     the EN route renders rather than blanking. bilingue: false.

  40 O meine Gebieterin / O Domina Mea / O My Queen — Marian act of
     self-dedication with the standard Latin and English forms.

  41 Memorare — attributed to St. Bernard. Standard Latin
     (Memento O piissima Virgo Maria) and the traditional English
     translation.

  42 Hilf, Maria, es ist Zeit — German Marian invocation. No
     canonical Latin; EN follows the user-provided translation
     ("Help, Blessed Mother, it is highest time…"). bilingue: false.

  37 Tischgebet vor dem Essen — composite of four sub-prayers:
     "O Gott von dem wir alles haben" (DE rhyme, EN best-effort),
     "Komm Herr Jesus sei unser Gast" (DE rhyme + standard EN
     "Come Lord Jesus be our guest"), Psalm 144:15-16 with Gloria
     Patri (full Latin/EN), and Benedic Domine (full Latin/EN).

  38 Tischgebet nach dem Essen — three sub-prayers: "Dir sei o Gott"
     (DE rhyme + best-effort EN), Agimus tibi gratias (full Latin/EN),
     and Retribuere (full Latin/EN).

New 'meal' prayer category (Tischgebete / Meal / Mensae) added to the
filter pills on the prayers index. Replaces the long-standing TODO
that gated meal prayers on the existence of a category for them.

Wiring:
- prayerSlugs.ts gets DE+EN slugs for each prayer (validates
  /faith/prayers/<slug> URLs and feeds the offline sync precache list
  + sitemap).
- de/en/la i18n files get six new prayer-name keys plus category_meal.
- [prayer]/+page.svelte: imports, prayerDefs entries, render block.
- [prayers]/+page.svelte: imports, labels, categories array (new meal
  pill), prayerCategories, prayers list with searchTerms, getPrayerName
  map, prayerMeta, render block.

Eastertide seasonal badge on the prayers index (Regina Cæli card)
moved from a bottom inline-block to absolute top-right, matching the
placement of the same badge on the rosary mystery cards. Adds a
position:relative anchor on the gebet_wrapper.

Bump 1.66.0 -> 1.67.0.

package.json

@@ -1,6 +1,6 @@
 {
 	"name": "homepage",
-	"version": "1.66.0",
+	"version": "1.67.0",
 	"private": true,
 	"type": "module",
 	"scripts": {