This ticket is being logged as a 'Part 2' to the fix implemented in: https://www.noesisengine.com/bugs/view.php?id=4581

This relates to the unexpected behaviour where toggling the Element Stage visibility eye icon between 'open' and 'closed' , not only changes the visibility of an Element on-Stage between Visible and Hidden, but also changes the Element's Runtime Property.

This ticket involves two improvements:
1) Making the Navigator's 'eye' icon only impact Element visibility in Studio's 'Edit Mode', without impacting what is rendered during 'Play' mode in the Runtime render.
2) Making toggling the Element's 'eye' icon not deselect the layer whose visibility was toggled.

Repro Steps:

1) Create a Studio Project featuring a MainPage.xaml
2) Introduce any Element into the MainPage's Root Grid, and ensure that it is visible on-Stage (by for example, changing its colour to a highly-visible colour)

3) Hover over the newly introduced Element in the Navigator, and click on the 'eye' icon to hide the Element on the Stage.
Observe how this operation has deselected the Element in the process.

4) Select the Element once again, and navigate to its 'Visibility' Property in its Properties Panel.
Observe how via the eye icon in the Navigator, its Visibility has been changed to 'Hidden'

5) Play the Page by pressing Ctrl+P.
Observe how despite the Element being hidden on-Stage, and despite having a Property setting it to 'Hidden', the Element is still being rendered on-Stage during playback.

6) Hover over the Element in the Navigator once again, and click the eye icon back on to change its visibility from Hidden to Visible.
Observe how its Visibility Property is still set to 'Hidden' despite reversing the visibility change in the Navigator.

7) Deselect, then re-select the Element.
Observe how its Visibility Property has now successfully updated to reflect its 'Visible' status.

Expected Results: The eye on/off visibility function in the Navigator used in Edit-Mode, is separate from the Element's Visibility Properties, which impacts what is displayed at runtime.
Expected Results: If toggling the eye icon in the Navigator impacts a Property, that the Property displayed in the Properties panel shows the correct state of visibility. (Likely not required as a feature if fixing the above)