* fix: initial work at fixing the typescript typings for fieldapi to be more strict
* chore(form-core): change implementation of strict tdata
* fix(form-core): insertValue should now be typed properly
* test(form-core): validate array helpers
* fix(form-core): make types for getSubField more narrow
* chore: autoformat with prettier
* chore: fix tests, eslint
* chore: upgrade eslint deps
* chore: upgrade nx and concurrent
* chore: remove svelte from prettier plugins
* chore: upgrade TypeScript version to avoid a TS codegen bug
* chore: remove React 17 CI script temporarily
* chore: fix build and formatter