build Dual CommonJS/ES module package (#605)

* expanded build to output ES modules, added exports fields to assist ES module bundlers like rollup

* chore(deps): update dependency ts-jest to v28.0.8

* chore(deps): update dependency @types/jest to v28.1.7

* fix(deps): update gatsby monorepo

* fix(deps): update dependency gatsby to v4.21.1

* expanded build to output ES modules, added exports fields to assist ES module bundlers like rollup

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

.gitignore

@@ -2,4 +2,5 @@ node_modules
 lib
 coverage
 .cache
-dist
+dist
+.idea