fix: Fixes saving binding when closing popover by click outside

[kof]

Description

When you are creating a binding from inside a variable dialog and having popover opened from a popover, when you click outside, binding won't be saved

Steps for reproduction

1. create resource variable
2. close
3. edit that variabel
4. bind url
5. click outside of both popovers
6. see changes were saved

Code Review

• hi @kof, I need you to do
  • conceptual review (architecture, feature-correctness)
  • detailed review (read every line)
  • test it on preview

Before requesting a review

• made a self-review
• added inline comments where things may be not obvious (the "why", not "what")

Before merging

• tested locally and on preview environment (preview dev login: 0000)
• updated test cases document
• added tests
• if any new env variables are added, added them to .env file