[BUG]: UI: assign agent error when no agent selected

[jessevz]

Version Information

0.14.4-dev

Hashcat

No response

Description

in the task detail page (ex: http://127.0.0.1:4200/#/tasks/show-tasks/41/edit). The user can assign agents to the task, it is very easy to misclick and add an agent when no agent has been selected yet, This will make the frontend send a request to the backend without an agentid, resulting in an error. I think it would be better to not make the + button clickable when no agent has been selected yet.