feat(i18n & ux): auditoria, traduccion completa, correcciones ux y gestion de idioma en perfil

config/config.py

@@ -1,5 +1,7 @@
 import os
 
+basedir = os.path.abspath(os.path.dirname(os.path.dirname(__file__)))
+
 class Config:
     SECRET_KEY = os.environ.get('SECRET_KEY') or 'dev-secret-key-change-in-production'
     SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL') or 'postgresql://postgres:password@localhost:5432/classrooms_db'
@@ -18,4 +20,4 @@ class Config:
     LANGUAGES = ['en', 'es']
     BABEL_DEFAULT_LOCALE = 'en'
     BABEL_DEFAULT_TIMEZONE = 'UTC'
-    BABEL_TRANSLATION_DIRECTORIES = 'translations'
+    BABEL_TRANSLATION_DIRECTORIES = os.path.join(basedir, 'translations')