:recycle: Unsubscribe rxjs and tweak dependencies

[waratah]

I'm submitting a...

• [X ] Bug Fix
• [ ] Feature
• [ ] Other (Refactoring, Added tests, Documentation, ...)

Description

The rxjs subcription will not always disappear leaving a memory leak.

Resolve some dependency issues - could not compile source

Added lookup or reload of the list when the value is cleared.

Does this PR introduce a breaking change?

• [X ] Yes
• [ ] No

Does this PR affects any existing issues?

• [ ] Yes
• [ X] No

if yes mention the issue number and what kind of change it is for example: closes #1, fixes #1, etc.,