v0.18.3 Fix missing type definition for label headers

What's Changed

• Update createColumns() doc by @lolcabanon in #193
• docs: Fixes two incorrect links for addSubRows and addGroupBy plugins. by @Manuel-DaSilva in #199
• Fix type issue with creation of LabelHeader by @nbarraille in #233

New Contributors

• @Manuel-DaSilva made their first contribution in #199
• @nbarraille made their first contribution in #233

Full Changelog: v0.18.2...v0.18.3