fix: ensure full Markdown pastes correctly

[Hector-Zhuang]

#1910

[vercel]

@Hector-Zhuang is attempting to deploy a commit to the TypeCell Team on Vercel.

A member of the Team first needs to authorize it.

[pkg-pr-new]

Open in StackBlitz

@blocknote/ariakit

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/ariakit@1957

@blocknote/code-block

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/code-block@1957

@blocknote/core

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/core@1957

@blocknote/mantine

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/mantine@1957

@blocknote/react

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/react@1957

@blocknote/server-util

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/server-util@1957

@blocknote/shadcn

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/shadcn@1957

@blocknote/xl-ai

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-ai@1957

@blocknote/xl-docx-exporter

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-docx-exporter@1957

@blocknote/xl-email-exporter

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-email-exporter@1957

@blocknote/xl-multi-column

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-multi-column@1957

@blocknote/xl-odt-exporter

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-odt-exporter@1957

@blocknote/xl-pdf-exporter

npm i https://pkg.pr.new/TypeCellOS/BlockNote/@blocknote/xl-pdf-exporter@1957

commit: c67a365