chore(i18n): update bg-BG translation

[dyanakiev]

No description provided.

[vercel]

@dyanakiev is attempting to deploy a commit to the umami-software Team on Vercel.

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[greptile-apps]

Greptile Summary

• Updates Bulgarian localization file with 18 new translations, converting English labels to native Bulgarian for better user experience
• Covers key UI elements including revenue tracking, navigation labels, error messages, and transaction-related terminology

Important Files Changed

Filename	Overview
src/lang/bg-BG.json	Added 18 Bulgarian translations for previously English labels covering revenue, navigation, and error messages

Confidence score: 5/5

• This PR is safe to merge with minimal risk - it only contains translation updates with no functional code changes
• Score reflects the low-risk nature of localization updates that don't affect application logic or data handling
• No files require special attention as translations are straightforward string replacements

Sequence Diagram

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[greptile-apps]

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[mikecao]

👍 Thank you!