feat: migrate to new tsclass schema

ts_web/elements/letterheader.ts

@@ -31,7 +31,7 @@ export class DeLetterHeader extends DeesElement {
     type: Object,
     reflect: true,
   })
-  public letterData: plugins.tsclass.business.ILetter;
+  public letterData: plugins.tsclass.finance.TInvoice;
 
   @property({
     type: Number,
@@ -171,7 +171,7 @@ export class DeLetterHeader extends DeesElement {
             "letterhead@@vat.yourId"
           )}
         </div>
-        ${this.letterData.to.vatId || "not provided"}
+        ${this.letterData.to.registrationDetails.vatId || "not provided"}
 
         <!-- TODO: Make use of components -->
         ${this.letterData.type === "invoice"
@@ -181,15 +181,11 @@ export class DeLetterHeader extends DeesElement {
                   "letterhead@@invoice.number"
                 )}
               </div>
-              ${this.letterData.content.invoiceData.id || "not registered"}`
+              ${this.letterData.id || "not registered"}`
           : null}
         ${this.renderDeliveryDate(
-          new Date(
-            this.letterData.content?.invoiceData?.periodOfPerformance?.from
-          ),
-          new Date(
-            this.letterData.content?.invoiceData?.periodOfPerformance?.to
-          )
+          new Date(this.letterData.periodOfPerformance?.from),
+          new Date(this.letterData.periodOfPerformance?.to)
         )}
       </div>
     `;