Release v6.1.0

⚠️ This ZIP does not work on clean installations. Please use v6.1.1. ⚠️

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• Improved the configuration flow by @BitcoinMitchell in #95
  • Improved configuration page and layout in a430058 and 8fcc87c
  • Updated module warnings in 190ebc7
• Bump squizlabs/php_codesniffer from 3.8.1 to 3.9.0 by @dependabot in #97
• Introduce order protection + Improved processing of the webhook by @BitcoinMitchell in #96
  • Protect order status changes when already paid in b17bfb2
  • Improved order handling, add payments, ensure clear warnings in f8dc0b1
  • Ensure customers can download the invoice when marked as paid in 5a1b595
  • Show module warning for latest version if no other warnings set in 85f70bb
  • Show payment info if order was created via BTCPay Server in aa40fce

Full Changelog: v6.0.3...v6.1.0

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Thank you @ndeet for testing.