feat(vocab): enhance vocabulary exercises and localization support

- Updated core patterns in BISAYA_PHASE5_DIDACTICS to include gloss translations for better understanding.
- Refactored vocabulary exercise generation in update-food-care-exercises.js to improve randomization and user engagement.
- Added new exercise types and improved question structures for vocabulary lessons, enhancing the learning experience.
- Enhanced localization files for German, English, and Spanish to support new exercise features and improve user guidance.
- Updated VocabLessonView to incorporate sequential navigation for exercises, providing a more structured learning flow.

frontend/src/i18n/locales/en/socialnetwork.json

@@ -517,6 +517,12 @@
                 "exerciseProgressLabel": "Progress",
                 "exerciseTargetLabel": "Required",
                 "exerciseCardLabel": "Task {number}",
+                "exerciseSequentialProgress": "Question {current} of {total}",
+                "exerciseSequentialBack": "Back",
+                "exerciseSequentialNext": "Next",
+                "exerciseWrongTitle": "Not quite right",
+                "exerciseReinforcementGoPractice": "Go to practice",
+                "exerciseReinforcementStay": "Stay on the test",
                 "exerciseStatusOpen": "Open",
                 "exerciseStatusCorrect": "Done",
                 "exerciseStatusRetry": "Try again",
@@ -548,6 +554,8 @@
                 "vocabPrepTitle": "Preparation before the vocabulary trainer",
                 "vocabPrepStep1": "Read through core patterns and the word list (native language ↔ target language) once.",
                 "vocabPrepProgress": "Pass {pass}: item {current} of {total}",
+                "vocabPrepTargetLabel": "Target language",
+                "vocabPrepGlossLabel": "Meaning",
                 "vocabPrepNextItem": "Next item",
                 "vocabPrepConfirm1": "First pass done",
                 "vocabPrepStep2": "Go through the same items again (active review, not testing yet).",