* Fix admin borg panel unable to install/remove upgrades (#83733)
## About The Pull Request
Fixes the admin borg panel's upgrade functionality. Caused by not
registering the signals for deletion and also by the upgrade code
checking the robot's contents instead of upgrades list (since the borg
panel spawns the item in the borg, it appears in the borg's contents,
making the check think the borg already has it installed.)
## Why It's Good For The Game
Easier testing new borg modules
## Changelog
🆑
fix: Fixes admin borg panel upgrade functions
/🆑
* Fix admin borg panel unable to install/remove upgrades
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Co-authored-by: thegrb93 <grbrown93@sbcglobal.net>
17d3d50113