# Combine ntfy sink URL and topic into one line

The ntfy sink should not be 2 input fields stacked per line. Instead the URL input and topic input should sit on the same line, formatted like `<url-input>/<topic-input>` (not literally that string, but visually structured that way), with a clear separator between them indicating how the two values will be combined/used.

## Acceptance criteria
- The ntfy sink's URL and topic inputs are laid out on a single line instead of one per line.
- A clear visual separator (e.g. a `/`) sits between the two inputs, indicating they combine into one destination (server URL + topic).
- Existing saved URL/topic values still populate correctly into the two inputs.