Resolve "Accepted attribute of comments isn't respected in export"

Closes #20

See merge request !33

Update .dev-js/.eslintrc.js

See merge request !40

Delete .eslintrc.js

See merge request !39

Update .prettierignore

See merge request !38

Update .gitignore

See merge request !37

Update pyproject.toml

See merge request !36

Update .dev-js/package.json

See merge request !35

Update tox.ini

See merge request !34

Drop sites framework

See merge request !26

Update tox.ini

See merge request !28

Update .gitignore

See merge request !27

Update .eslintrc.js

See merge request !30

Update .prettierignore

See merge request !29

Update .dev-js/package.json

See merge request !31

Update pyproject.toml

See merge request !32