Fix to the Settings Tabs translation situation + Fixes to spanish translation

[mendozal]

I created a dev environment and ran
npx laravel-language-extractor --theme default and translated the new strings.

ALSO

I added a fix to themes/default/views/admin/settings/index.blade.php allowing the translation of the settings tabs.
In order for this to work we should add the following lowercase key, value pairs to the language's json files:

"general": "general",
"affiliate": "afiliados",
"company": "empresa",
"credits": "créditos",
"cronjob": "cronjob",
"login": "login",
"mail": "mail",
"security": "seguridad",
"theme": "tema",
"upgrade": "actualizar"

I added them to the Spanish version, but I don't want to mess with the other languages.

I belive, npx laravel-language-extractor --theme default won't retrieve them because they're a dynamic value.

[mendozal]

Let me know if you'd like me to add the missing keys to the other language files (without translating them), so they're available to others.

[CorwinDev]

Let me know if you'd like me to add the missing keys to the other language files (without translating them), so they're available to others.

Yes please

[mendozal]

Added the labels to the other languages, but didn't sort the JSON files because VSCode sorts differently and creates many unnecessary changes to the files.