Rename address field to street and change to text input

Changes the user settings address field to street with the following updates:
- Renames database field from 'address' to 'street' in UserSettings type
- Changes form input from textarea to single-line text input
- Updates validation logic and error messages
- Updates translations in both Croatian and English
- Removes deprecated AppSettingsForm component

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

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

messages/en.json

@@ -190,8 +190,8 @@
     "first-name-placeholder": "Enter your first name",
     "last-name-label": "Last Name",
     "last-name-placeholder": "Enter your last name",
-    "address-label": "Address",
-    "address-placeholder": "Enter your address",
+    "street-label": "Street",
+    "street-placeholder": "Enter your street",
     "iban-label": "IBAN",
     "iban-placeholder": "Enter your IBAN",
     "save-button": "Save",
@@ -199,7 +199,7 @@
     "validation": {
       "first-name-required": "First name is mandatory",
       "last-name-required": "Last name is mandatory",
-      "address-required": "Address is mandatory",
+      "street-required": "Street is mandatory",
       "iban-required": "Valid IBAN is mandatory",
       "iban-invalid": "Invalid IBAN format. Please enter a valid IBAN",
       "validation-failed": "Validation failed. Please check the form and try again."