v2: Design, Hasura Console, with Headers in Event Trigger

### Version Information

Server Version: 2.35.1

### Environment

OSS

### What is the current behavior?

The Header value Field is very small at “From env var” in the Hasura Console Event trigger Field.

Web Browser: Chrome & Firefox Tested

### What is the expected behavior?

The expected behavior is a split like 25/75 or 50/50 to see the Complete Value from a Header Field

### How to reproduce the issue?

1. Go to Events Page
2. Create an Event Trigger
3. Go to Advanced Settings
4. Switch to From env var

### Screenshots or Screencast


### Keywords

Hasura Console, Design, Header, From env var

Start in the Hasura Console Events page and reproduce the layout from Advanced Settings after switching the header value field to “From env var.” Inspect the header field layout and adjust it so the value area uses a wider split, then verify that the complete header value is visible in Chrome and Firefox.

Written by the indexing model from the issue text.