fix(template-builder): add jsdoc to TemplateField interface (#1929)

Author: caio-pizzol

packages/template-builder/src/types.ts

@@ -10,6 +10,7 @@ export interface FieldDefinition {
   group?: string;
 }
 
+/** Field instance in a template document */
 export interface TemplateField {
   id: string | number;
   alias: string;