Add missing spanish labels and descriptions at settings screen

[Mj-br]

Pull request (PR) checklist

Please check if your pull request fulfills the following requirements:

• [x] I've read the Contribution Guidelines and my PR doesn't break the rules.
• [x] I've read and understand the Developer Guidelines.
• [x] I confirm that I've run the code locally and everything works as expected.
• [x] My PR includes only the necessary changes to fix the issue (i.e., no unnecessary files or lines of code are changed).
• [x] 🎬 I've attached a screen recording of using the new code to the next paragraph (if applicable).

Screen recording of your changes (if applicable):

• Please take a look to the screenshots at "Before|After" section.

What's changed?

Describe with a few bullets what's new:

• I've added the missing translations to Spanish of some labels and descriptions at the Settings screen.

Before|After

Before

   

After

   

Risk factors

What may go wrong if we merge your PR?

• Nothing

In what cases won't your code work?

• It won't work if the switchLanguage() function from the SettingsViewModel is deleted.

Does this PR close any GitHub issues? (do not delete)

• Closes #3654

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