v8.5.4

What's Changed

• Remaking the example by @freshtechtips in #1530
• The mobileWidth, mobileHeight, mobileMargin, and mobileAlignment is now deprecated in flutter_quill, they are now defined in flutter_quill_extensions
• Deprecate replaceStyleStringWithSize function which is in string.dart
• Deprecate alignment, and margin as they don't conform to official Quill JS

Full Changelog: v8.5.3...v8.5.4