build: Use prettier for typescript

Stop ignoring .ts files in prettier and fix existing issues.

src/app/loans/loans.module.ts

@@ -173,6 +173,6 @@ import { AddInterestPauseComponent } from './loans-view/loan-account-actions/add
     LoanTermVariationsTabComponent,
     AddInterestPauseComponent
   ],
-  providers: [ ],
+  providers: []
 })
 export class LoansModule {}