Spanish (ES) Lozalization

[dontic]

I've forked the project and started localizing the app in Spanish, more specifically Spanish (Spain).

Contribution docs say to open an issue first. Let me know if I should follow any specific steps.

I'm just starting by creating an es.ts file in all 3 locales directories:

• packages/webapp/src/locales/es.ts
• packages/form-renderer/src/locales/es.ts
• packages/webapp/src/pages/form/views/FormComponents/locales/es.ts

[iMuFeng]

We are migrating webapp/src/pages/form/views/FormComponents to form-renderer as an npm package. Therefore, only need to add translation files in FormComponents. We will merge these into form-renderer later.