LG-14888: Update Spanish strings for LQA feedback

[aduth]

🎫 Ticket

LG-14888

🛠 Summary of changes

Updates a few translations based on feedback from translators.

📜 Testing Plan

Verify updated text for reCAPTCHA disclosure in Spanish:

Prerequisite: Configure real reCAPTCHA in local development. Any credentials work, they don't need to be valid:

# config/application.yml
development:
  recaptcha_site_key: 'test'
  recaptcha_enterprise_api_key: 'test'
  recaptcha_enterprise_project_id: 'test'
  recaptcha_mock_validator: false
  sign_in_recaptcha_score_threshold: 0.3
  sign_in_recaptcha_percent_tested: 100

1. Go to http://localhost:3000/es/
2. See updated translations

Verify updated text for "Email not selected" in Spanish:

1. Go to http://localhost:3000/
2. Sign in
3. From account page, go to "Your connected accounts"
4. If you don't have any connected accounts, run and sign in to sample application
5. If you have a connected account that already has a linked email address, reset through rails console: User.find_with_email('<insert email address>').identities.update_all(email_address_id: nil)
6. Change page language to Spanish
7. See updated translations

👀 Screenshots

Text	Before	After
reCAPTCHA disclosure
Connected accounts

[kevinsmaster5]

Looks good. Works locally 👍