Enhancement - Ability to resize query editor

[zrod]

General information

• OS Platform and Distribution (e.g., Linux Ubuntu 16.04): MacOS Catalina / Fedora 30
• ElasticHQ Version: 3.5.12
• Elasticsearch Version: 6.6.1
• Browser Vendor and Version (if applicable): Chrome 78 / Firefox 71

Issue Description

First of all, thank you, this is a great tool!
I use it almost daily for a side project and often find myself in the Query editor screen. One thing that kind of bothers me is the inability to resize the query editor/textarea, which leads to my question:

Are there any reasons why the editor (the one powered by ace editor) isn't resizable or doesn't auto resize (vertically)? If not, would you be open to such a change? I could put some time into it.

Thank you!