Draft: [Full MR] Integrate with Shimo

Issue: #343386 (closed)

Integrate with Shimo(石墨文档).

part of MRs

• part of model: !73621 (merged)
• part of migration(add has_shimo for cache): !74172 (merged)
• part of menu and index page: !74140 (merged)

Open Feature Flag

project = Project.last
Feature.enabled?(:shimo_integration, project)
Feature.enable(:shimo_integration, project)

Views

Project => Settings => Integrations => Shimo

Config your Shimo workspace URL.

Shimo sidebar and home page.