presets can have multiple responses on same route

[nbarkoch]

When adding new route to presets i can choose the already existing responses that are defined in the presets, and also adding different responses under same route.

steps to reproduce:
create new project (local)
got to Presets in sidebar > PresetFolder > presetExample

click on "ADD ROUTE"
select a response under existing route that, like for example:
ExampleServer - /parent - /getExample - you can select again the same response or others and they will be added, example: Object response Example

expected result:
routes that already having a defined preset response should be disabled, so we couldn't not even get to the response column.

version: "1.4.0"