All columns sortable on the new Inputs page (7.1)

## What?

All table columns on the new `Inputs` page should be sortable.

## Why?

The new `Inputs` page is pretty great, but it's unexpected that certain table columns (e.g. `Port`, `Traffic Last Minute`, `Input Failures`) can't be sorted.

* `Port` would be useful to review port utilization (e.g. finding the next available).
* `Traffic Last Minute` would be useful as a way to view the most active inputs while on the `Inputs` page.
* `Input Failures` would be useful to quickly identify all failing inputs.

## Your Environment

* Graylog Version: `7.1.1` (Enterprise)