chore(deps): update dependency streamdown to v1.4.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
streamdown (source)	1.3.0 -> 1.4.0

---

Release Notes

vercel/streamdown (streamdown)

v1.4.0

Compare Source

Minor Changes

• 6c6f507: migrate from harden-react-markdown to rehype-harden

Patch Changes

• d0444a3: Add support for isAnimating
• 7a7464f: Correctly passes through remark rehype options into react-markdown. Previously this was ignored
• c68ebd6: Support incomplete URL parsing for links
• 0bfca42: 1.4 fixes and cleanup
• 6c0672b: Fix footnotes parsing
• 239e41d: fix: Block-level Markdown escapes
  containers when paragraphs/blank lines are present
• 7cd5048: Add support for remarkMathOptions and remarkGfmOptions props
• f5d6cd6: Remove options props, make plugins fully customizable
• 699622f: Allow base64 images
• 38ad1ed: Fix node="[object Object]" HTML attribute bug. Fixed AST node objects being passed as HTML attributes by explicitly filtering out the node prop from component props before spreading to HTML elements.
• 21a7031: Fix themed backgrounds for code blocks
• 04f6f3a: Extract images from paragraph tags
• 3c780b4: Fit footnotes rendering
• 20ca02d: fixed email addresses being rendered as blocked link

---

Configuration

📅 Schedule: Branch creation - "after 01:00 and before 07:00 every weekday" in timezone Europe/London, Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.