fix: payment with empty password hint

Author: teidesu

src/components/inputField.ts

@@ -557,7 +557,7 @@ export default class InputField {
       this.container.append(border);
     }
 
-    if(label) {
+    if(label != null) {
       this.label = document.createElement('label');
       this.setLabel();
       this.container.append(this.label);
@@ -636,6 +636,7 @@ export default class InputField {
     } else {
       this.label.append(i18n(this.options.label, this.options.labelOptions));
     }
+    this.label.style.visibility = this.label.textContent ? 'visible' : 'hidden';
   }
 
   get value(): string {
@@ -709,6 +710,7 @@ export default class InputField {
     if(label) {
       this.label.textContent = '';
       this.label.append(i18n(label, this.options.labelOptions));
+      this.label.style.visibility = 'visible';
     } else {
       this.setLabel();
     }

src/components/popups/paymentCardConfirmation.ts

@@ -25,7 +25,7 @@ export default class PopupPaymentCardConfirmation extends PopupElement<{
     });
 
     const section = new SettingSection({noDelimiter: true, noShadow: true, caption: 'Checkout.PasswordEntry.Text', captionArgs: [card]});
-    const passwordInputField = new PasswordInputField({labelText: passwordState.hint});
+    const passwordInputField = new PasswordInputField({labelText: passwordState.hint ?? ''});
     section.content.append(passwordInputField.container);
     this.scrollable.append(section.container);