Vue: improve parsing custom blocks with `angular-html-parser@1.5.0` (#8153)
* Parse twice for vue
* Remove 'html' from vueRootElementsSet
* Add link for Vue SFC spec
* Modify to don't format pug code
* Add changelog
* Fix typo
* Change lang, pug => unknown in tests
* Support top-level html
* Refactor shouldParseAsHTML
* Fix multiple template formatting
* Tiny fix
* Fix by Lint
* Remove console.log
* Support nested template tag
* Meke expected syntax errors
* Update tests
* Support unclosed node
* Update to angular-html-parser@1.7.0
* Update
* Remove failed tests
* Modify to throw first parsing error
* Remove options for error tests
* Optimize parse
* Fix reviewed points
* Fix by lint