fix: memory leak in settings indicators

[SimonSiefke]

This fixes a memory leak in the settings indicators.

Currently the function only clears the scopeOverridesIndicator in one if condition but not in others:

this.scopeOverridesIndicator.disposables.clear();

This means that the hover disposables added here

this.addHoverDisposables(this.scopeOverridesIndicator.disposables, this.scopeOverridesIndicator.element, showHover);

are not being cleared when calling updateScopeOverrides.