feat: add Spanish language support

[juanm512]

This pull request adds support for the Spanish language in the MedusaJS Admin Dashboard. Translations for all sections, components, and messages in the admin panel have been added, allowing Spanish-speaking users to navigate and use the platform in their native language.

Adding support for more languages ​​opens the window of opportunity for people of other languages ​​to use your service.

[changeset-bot]

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Latest commit: 05c0906

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[kasperkristensen]

Hey @juanm512,

Thanks for the PR, it looks good except a few issues in the es.json file.

Validation failed for es.json:
  Missing required key: "edit" at /products
  Unexpected key: "editProduct" at /products
  Missing required key: "removed" at /customers/groups
  Missing required key: "emailDisabledTooltip" at /customers/edit
  Unexpected key: "emailDeshabilitardTooltip" at /customers/edit

If you can add the missing keys and remove the unexpected once then this will be ready to be merged.