Fix/environment edit modal save

[oahmed-OS]

Background

For environment override modifications, the current behavior did not persist these changes consistently. This is not consistent with the expected behavior of persisting changes as the user closes and re-opens the modal after submitting some change.

This was caused by two issues:

• onBlur was not firing consistently on modal close
• Updated values was not loaded in debug route collection and was not re-rendered on change

Changes

• Capture save on hide rather then on blur
• Update collection in debug route when change detected using new collection state
• add smoke test

Closes #5612

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[oahmed-OS]

failing smoke tests, found more acceptable solution - will open a separate PR.