Compound Entity Master: edge-cases in D'n'D behaviour of menu items

[01es]

Description

Original issue: #2044

Further extensive testing of the menu reordering feature, identified several edge case that need to be investigated further and addressed.

• [ ] 1. Installed PWA under macOS and Linux does not render the menu item being dragged, replacing it with globe. The cause of this was narrowed down to a defect in Chromium.
• [ ] 2. The same defect is potentially makes menu reordering unusable under Android.
• [ ] 3. Safari exhibits strange rendering artifacts and a performance issue during menu item dragging.
• [ ] 4. Tooltips, which should not get displayed during menu reordering, get displayed in Firefox (tested under macOS).

The above may require a custom implementation of D'n'D.

Expected outcome

Correct menu reordering by D'n'D on all platforms.

[01es]

The problem outlined in this issue seems to have been resolved in later versions of Chrome, Safari, and Firefox.