fix(i18n): correct translation directions in socialnetwork.json files

- Updated translation keys in German, English, and Spanish localization files to accurately reflect the intended language direction for vocabulary translation.
- Adjusted the `translateTo` and `translateFrom` keys to ensure consistency across all language files.

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

@@ -457,8 +457,8 @@
                 "vocabTrainerDescription": "Übe die wichtigsten Begriffe dieser Lektion interaktiv.",
                 "startVocabTrainer": "Vokabeltrainer starten",
                 "stopTrainer": "Trainer beenden",
-                "translateTo": "Übersetze ins Deutsche",
-                "translateFrom": "Übersetze ins Bisaya",
+                "translateTo": "Übersetze ins Bisaya",
+                "translateFrom": "Übersetze ins Deutsche",
                 "next": "Weiter",
                 "totalAttempts": "Versuche",
                 "successRate": "Erfolgsrate",

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

@@ -457,8 +457,8 @@
                 "vocabTrainerDescription": "Practice the most important terms of this lesson interactively.",
                 "startVocabTrainer": "Start Vocabulary Trainer",
                 "stopTrainer": "Stop Trainer",
-                "translateTo": "Translate to English",
-                "translateFrom": "Translate to Target Language",
+                "translateTo": "Translate into Bisaya",
+                "translateFrom": "Translate into German",
                 "next": "Next",
                 "totalAttempts": "Attempts",
                 "successRate": "Success Rate",

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

@@ -455,8 +455,8 @@
                 "vocabTrainerDescription": "Practica los términos clave de esta lección de forma interactiva.",
                 "startVocabTrainer": "Iniciar entrenador",
                 "stopTrainer": "Detener entrenador",
-                "translateTo": "Traduce al alemán",
-                "translateFrom": "Traduce desde bisaya",
+                "translateTo": "Traduce al bisaya",
+                "translateFrom": "Traduce al alemán",
                 "next": "Siguiente",
                 "totalAttempts": "Intentos",
                 "successRate": "Tasa de acierto",