Deleting a breadBoard freezes the schematic editor

[ikartikgautam]

Deleting a breadboard from the schematic editor breaks something and starts giving errors in js console which eventually leads to the freezing of the whole editor window.

Steps to Reproduce:

1. Drag a breadboard & any element into the schematic editor.
2. Delete the breadboard
3. Now start moving leftover elements.

Expected behavior: After deletion of breadboard, remaining elements should move freely.

Tested on the live website:

Screen Recording of Bug:
https://user-images.githubusercontent.com/39825660/121654426-57765500-cabb-11eb-9cb0-33dade282899.mov