feat: add topper and paymonade

[ChefBingbong]

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PR-Codex overview

This PR introduces a new provider Topper, updates translations, refactors code for provider availabilities, and adjusts endpoint URLs.

Detailed summary

• Added Topper as a new provider
• Updated translations in translations.json
• Refactored code for provider availabilities
• Adjusted endpoint URLs for ONRAMP_API_BASE_URL

The following files were skipped due to too many changes: apps/web/src/views/BuyCrypto/containers/BuyCryptoForm.tsx, apps/web/src/views/BuyCrypto/components/TransactionFeeDetails/TransactionFeeDetails.tsx, apps/web/src/state/buyCrypto/hooks.ts, apps/web/src/views/BuyCrypto/hooks/useOnRampQuotes.ts

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