support create new doc from templates

[jinhefeng]

Description

1. templates manager include create, edit, del and use.
2. template remain properties info.

Use case

such as:

1. Meeting Minutes Template
2. Interview Record Template
3. Project Management Template

Anything else?

like Microsoft Word

Are you willing to submit a PR?

• Yes I'd like to help by submitting a PR!

[affine-issue-bot[bot]]

Issue Status: 🔍 Under Investigation

🔍 Under Investigation

We’ve triaged the issue, but now we need to investigate it more thoroughly. This may require processing additional information like logs or dumps.

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[pengx17]

I think this is already on our roadmap. cc @hwangdev97

[aiyou9]

When will the calendar's preset template function be launched? How to deal with existing diaries?

[hwangdev97]

We will support document-level templates.However, the specific timing has yet to be scheduled.🤔