Update Spanish translations; Fix a few typos

[imnasnainaec]

This change is 

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 74.08%. Comparing base (c91e376) to head (51df82d).
⚠️ Report is 32 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3945   +/-   ##
=======================================
  Coverage   74.08%   74.08%           
=======================================
  Files         292      292           
  Lines       10653    10653           
  Branches     1347     1347           
=======================================
  Hits         7892     7892           
  Misses       2376     2376           
  Partials      385      385           

Flag	Coverage Δ
backend	85.29% <100.00%> (ø)
frontend	65.67% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
• 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

[jasonleenaylor]

@jasonleenaylor reviewed 16 of 16 files at r1, all commit messages.
Reviewable status: complete! all files reviewed, all discussions resolved (waiting on @imnasnainaec)