refactor: move language selector into tenant email fieldset

Improved UI organization by moving the language selector into the same fieldset
as the tenant email input, since both are related to email notifications. The
language selector now only appears when email notifications are enabled.

Changes:
- Move language selector inside tenant email fieldset (no separate fieldset)
- Add label for tenant email input field
- Simplify notification language label text
- Remove unused notification-language-legend translation key
- Language selector shares visibility condition with email field

This provides a more logical grouping of related settings and reduces visual
clutter when email notifications are disabled.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

web-app/app/ui/LocationEditForm.tsx

@@ -359,6 +359,9 @@ export const LocationEditForm: FC<LocationEditFormProps> = ({ location, yearMont
                     {(formValues.billFwdEnabled || formValues.rentDueNotificationEnabled) && (
                         <fieldset className="fieldset bg-base-200 border-base-300 rounded-box w-xs border p-4 pb-2 mt-4">
                             <legend className="fieldset-legend font-semibold uppercase">{t("tenant-email-legend")}</legend>
+                            <label className="label">
+                                <span className="label-text">{t("tenant-email-label")}</span>
+                            </label>
                             <input
                                 id="tenantEmail"
                                 name="tenantEmail"
@@ -424,11 +427,6 @@ export const LocationEditForm: FC<LocationEditFormProps> = ({ location, yearMont
                                         </p>
                                     ))}
                             </div>
-                        </fieldset>
-                    )}
-
-                    <fieldset className="fieldset bg-base-200 border-base-300 rounded-box w-xs border p-4 pb-2 mt-4">
-                        <legend className="fieldset-legend font-semibold uppercase">{t("notification-language-legend")}</legend>
                         <label className="label">
                             <span className="label-text">{t("notification-language-label")}</span>
                         </label>
@@ -442,7 +440,8 @@ export const LocationEditForm: FC<LocationEditFormProps> = ({ location, yearMont
                             <option value="hr">{t("notification-language-option-hr")}</option>
                             <option value="en">{t("notification-language-option-en")}</option>
                         </select>
-                    </fieldset>
+                        </fieldset>
+                    )}
 
                     <fieldset className="fieldset bg-base-200 border-base-300 rounded-box w-xs border p-4 pb-2 mt-4">
                         <legend className="fieldset-legend font-semibold uppercase text-base">{t("scope-legend")}</legend>

web-app/messages/en.json

@@ -195,6 +195,7 @@
     "rent-amount-label": "Monthly rent amount",
     "rent-amount-placeholder": "enter rent amount",
     "tenant-email-legend": "TENANT EMAIL",
+    "tenant-email-label": "Send tenant notifications to e-mail address:",
     "tenant-email-placeholder": "enter tenant's email",
     "email-status": {
       "reset-button-label": "Reset",
@@ -205,8 +206,7 @@
       "verified": "this e-mail address has been verified",
       "unsubscribed": "tenant unsubscribed this address from receiving emails"
     },
-    "notification-language-legend": "NOTIFICATION EMAIL LANGUAGE",
-    "notification-language-label": "Language for automatic notification emails",
+    "notification-language-label": "Send tenant notifications in language:",
     "notification-language-option-hr": "Croatian (Hrvatski)",
     "notification-language-option-en": "English",
     "warning-missing-tenant-names": "Warning: Tenant first and last name are missing. The 2D barcode will not be displayed to the tenant when they open the shared link until both fields are filled in.",

web-app/messages/hr.json

@@ -194,6 +194,7 @@
     "rent-amount-label": "Iznos najamnine",
     "rent-amount-placeholder": "unesite iznos najamnine",
     "tenant-email-legend": "EMAIL PODSTANARA",
+    "tenant-email-label": "Obavijesti podstanara šalji na e-mail adresu:",
     "tenant-email-placeholder": "unesite email podstanara",
     "email-status": {
       "reset-button-label": "Reset",
@@ -204,8 +205,7 @@
       "verified": "podstanar je potvrdio ovu e-mail adresu",
       "unsubscribed": "podstanar je odjavio ovu e-mail adresu"
     },
-    "notification-language-legend": "JEZIK ZA OBAVIJESTI",
-    "notification-language-label": "Jezik za automatske obavijesti putem e-maila",
+    "notification-language-label": "Obavijesti za podstanara šalji na jeziku:",
     "notification-language-option-hr": "Hrvatski",
     "notification-language-option-en": "Engleski (English)",
     "warning-missing-tenant-names": "Upozorenje: Ime i prezime podstanara nedostaju. 2D barkod neće biti prikazan podstanaru kada otvori podijeljenu poveznicu dok oba polja ne budu popunjena.",