feat: imageSmoothingEnabled flag now exposed

[srijan-paul]

Expose the imageSmoothingEnabled flag from the Canvas API.

• imageSmoothingEnabled ctx false is equivalent to ctx.imageSmoothingEnabled = false.

---

Checklist:

• Added the change to the changelog's "Unreleased" section with a reference to this PR (e.g. "- Made a change (#0000)")
• Linked any existing issues or proposals that this pull request should close
• Updated or added relevant documentation
• Added a test for the contribution (if applicable)

Question

I also wanted to add some other calls, like imageSmoothingQuality and lineDashOffset. Should I add those to this same PR?

[sigma-andex]

LGTM