v1.3.1

Changed

• Update build and lint tooling to current esbuild and ESLint flat config versions.

Fixed

• Resolve mask percentage values against the correct canvas axis for positions, sizes, circle radius, and ellipse radii.
• Avoid unnecessary Fabric set() calls while serializing mask styles for history snapshots.
• Exclude trailing partial pixels when applying crop regions to prevent possible 1px JPEG edge artifacts.
• Compensate for existing auto scrollbars when measuring the canvas container viewport.
• Use standard DOM visibility state for placeholders instead of relying on Bootstrap utility classes.