* add libraries for traslation purposes
* Add button and service for language selection
* add spanish translation on login page
* add spanish translation on upload page
* Add spanish translations for explore page
* Add translations on user page
* Add translations for config page
* Add spanish translations on chat page
* add translations for brain page
* fix GUI and save on local storage
* fix (i18n) init and types
* fix (i18n): typos
* add translation on new brain modal
* add translations on metadata
* Add translations on home page
* fixes types
* fix(frontend-tests): use get by id instead of text
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Co-authored-by: Gustavo Maciel <gustavo_m13@outlook.com>
