Update spanish translation (es.json5)

[vlguerrero]

Description

Update Spanish translation.

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[github-actions]

Hi @vlguerrero,
Conflicts have been detected against the base branch.
Please resolve these conflicts as soon as you can. Thanks!

[tdonohue]

@vlguerrero : My apologies that this PR was somehow forgotten/overlooked. It appears however that these missing Spanish translations have since been added to our codebase in #2448 . I've compared the two PRs, and while the translations sometimes differ, it appears that missing translations are now in our codebase.

If somehow there are still translations missing or overlooked, please do feel free to submit a new PR. I'll close this one though, as it appears to not add anything new. Again, apologies that we didn't respond earlier.. because of many summer holidays, PR reviews have gone more slowly the last few months.