fix: cannot find document if group destroyed

[lijinke666]

Checklist

• npm test passes
• benchmarks are included
• commit message follows commit guidelines
• documents are updated

Description of change

for renderToMountedElement func.

if cell is dynamic render, and removed outside of the viewport. G2 cannot find document

1. add canvas document default value
2. add plot type validate

curve.ts:113 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'createElement')

render.ts:149 Uncaught (in promise) TypeError: Cannot read properties of null (reading 'defaultView')

Before	After

[pearmini]

这个 case 的测试不太好加，所以就不用加测试。

[pearmini]

剩下的类型问题我提一个 PR 解决。