Extend toast notifications to all forms (bills and locations)

- Update billActions to redirect with toast messages
  - billSaved: when bill is created or updated
  - billDeleted: when bill is deleted
- Update locationActions to redirect with toast messages
  - locationSaved: when location is created or updated
  - locationDeleted: when location is deleted
- Enhance MonthLocationList to check for all toast parameters
  - Consolidated success message handling for all operations
  - Clean up all URL parameters after showing toast
- Add translations for all success messages (EN and HR)
  - Bill saved/deleted messages
  - Location saved/deleted messages

User experience: All forms now redirect to home with toast
notifications, providing consistent feedback across the app.

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

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

messages/en.json

@@ -74,7 +74,11 @@
       "empty-state-title": "No Barcode Data Found",
       "empty-state-message": "No bills with 2D barcodes found for {yearMonth}"
     },
-    "profile-saved-message": "Profile updated successfully"
+    "profile-saved-message": "Profile updated successfully",
+    "bill-saved-message": "Bill saved successfully",
+    "bill-deleted-message": "Bill deleted successfully",
+    "location-saved-message": "Location saved successfully",
+    "location-deleted-message": "Location deleted successfully"
   },
   "bill-delete-form": {
     "text": "Please confirm deletion of bill \"<strong>{bill_name}</strong>\" at \"<strong>{location_name}</strong>\".",