[Bug] Dev Branch - UI Issue with deleting the last grunt in list

**Feature Request or Bug**
Bug

**Describe the feature request or bug**
When there is only one Grunt left in the Grunt tab, if you click on the "Action" dropdown menu, a scroll bar appears and results in some weird behaviour. The actual menu is not scrollable but rather you are able to scroll "down" with the grunt becoming invisible/out of view, the issue being that the final option; "Delete", is out of view itself.

**To Reproduce**
Steps to reproduce the behavior:
1. Have a single Grunt connected
2. Go to the Grunt tab in the Covenant web UI
3. Select the "Action" dropdown menu
4. Scroll down without being able to click on the "Delete" option

**Expected behavior**
No scrollbar, all dropdown menu options viewable and clickable.

**Screenshots**

**Covenant Server Information:**
- OS: Kali VM, Windows 10 Host
- Docker or Native: Native

**Browser Information:**
N/A

**Target Information (System that implant is running on):**
N/A

**Additional context**
N/A