Add Hindi (hi-IN) language support

[01saurabhshukla]

Hi maintainers,

I’d like to propose adding Hindi (hi-IN) language support to this project.

Hindi is widely spoken by a large user base in India, and adding support would improve accessibility and help the project reach more users.

Proposed scope:

• Add Hindi (hi / hi-IN) translation files following the existing i18n structure
• No changes to core logic or breaking behavior
• Keep translations consistent with current terminology

I’m happy to implement this and submit a PR if this aligns with the project’s roadmap.
Please let me know if you’re open to this or if there are any guidelines I should follow.

Thanks for your time and for maintaining this project.