* create rrdom package
* test(rrdom): add unit tests for polyfill.ts
* fix(rrweb snapshot): type check errors
Errors are caused by the declaration similarity of @types/mocha and @types/jest if we install both of them in the whole project.
* Set tagNames to upper case by default
This mirrors the `Element.tagName` implementation:
```
For DOM trees which represent HTML documents, the returned tag name is always in the canonical upper-case form. For example, tagName called on a <div> element returns "DIV".
```
https://developer.mozilla.org/en-US/docs/Web/API/Element/tagName
* Add workspace file
* VSCode settings for rrdom tests
* Add basic test for RRDocument
* Only setup jest tests for rrdom
* mock Node type and Event type for nodejs environment
* test(rrdom): add snapshot for document.test.ts
* fix issue of nwsapi import and add unit tests for rrdom
* fix: querySelectorAll returns nothing when querying elements with ids and classNames
* fix: error of unit test for Event polyfill
Since Event class is built in nodejs after v15.0.0
* add a dummy implementation of canvas
* add style element support
* add unit test for style element
Co-authored-by: Justin Halsall <Juice10@users.noreply.github.com>
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