upd: optimize mermaid performance

upd: upgrade `markdown-it-attributes`

upd: update `markdown-it-attributes`

upd: use `markdown-it-attributes` plugin

upd: optimize folding

feat: add folding for editor

refactor: remove `ctx.editor.revealLineInCenter` `ctx.editor.revealLi…

…ne` `ctx.editor.setScrollToTop`

refactor: remove `ctx.constant`

upd: update table completion

feat: add insert mode for openai