Add documentation about add-on translation

[nvdaes]

• Add documentation about translating add-ons via Crowdin
• Improve documentation
• Run pre-commit

Description

This PR adds two separate files explaining how to translate add-ons, one for add-on authors, and the other one for add-on translators.

Important: This documentation has been created by @abdel792, with small modifications by me (@nvdaes). Credits for Abdel as the author of these documents.

[Copilot]

Pull request overview

Note

Copilot was unable to run its full agentic suite in this review.

This PR refactors the Crowdin localization documentation by moving detailed setup/usage instructions out of the main README into dedicated guides for add-on authors and translators.

Changes:

• Replaced a large README section with links to new localization guides.
• Added a dedicated translation guide for translators.
• Added a dedicated translation guide for add-on authors.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 3 comments.

File	Description
readme.md	Replaces detailed translation workflow docs with links to the new guides.
docs/l10n/addonTranslators.md	Adds a comprehensive translator-focused guide (Crowdin, Poedit, l10nUtil, workflow behavior).
docs/l10n/addonAuthors.md	Adds an author-focused setup guide (secrets/variables, infra, workflow behavior).

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[nvdaes]

@seanbudd , I think this is ready for review. Especially in the translators guide, I've tried to respect as much as possible the documentation created by @abdel792 as a translator.