Handle Missing Translations and Translate Comments in Italian

[jessc93]

This task involves the following actions to improve the internationalization (i18n) and code quality of the project:

1. Handle Missing Translations:
   There are some translations that are currently missing in the messages folder. All strings or content that require translation but are not yet present should be added to the corresponding translation files.

2. Translate Italian Comments:
   There are some comments in the codebase written in Italian. These comments should be removed or, if necessary, translated to English to ensure that all comments are universally understandable.