When adding the UUID of Input to URL - nothing is happening

## Expected Behavior

Access the Inputs page with added UUID like `/system/inputs/5cb0b380c7931641a00dd2e2 should open the inputs page without any problems.

As a bonus this would focus/jump the input that is behind this UUID.

## Current Behavior

Nothing is loaded at all:


## Steps to Reproduce (for bugs)
1. open Graylog get a valid UUID and add this to the URL

## Context
The Input UUID is used in error logs and if you want to find the input that is behind this the only quick way is navigate to `system/inputs/5cb0b380c7931641a00dd2e2/extractors` and see the name of the input.

## Your Environment

* Graylog Version: 4.0