Improve the top of the instance/object properties panel.

[Bouh]

Make the top of the panel consistent accross instance and object, the text of the object is still selectable, and its easier to read the type is that an instance or which kind of object.

This PR

Currently

[LuniMoon]

Note: the "object name input" visible in the panel when an object is selected appears currently "unabled" because it didn't make it for implementation. However, it was designed to allow users to change the name of an object without having to go over the object list panel to do so.
I agree that if it doesn't get used it can be removed. However, we could consider its original purpose and evaluate if we want to enable it in a new fix before it gets completely removed.

[Bouh]

The PR I'm proposing is practical and cosmetic, that add consistency between two parts of the UI that I've found to be more confusing than practical.

Thanks for the information, but if this field was designed to be editable, it was simply designed, never implemented. So the implementation is either thought, or not done to the end. In either case, this would require bigger technical changes, and that's not what this PR is about.

I'd like to move forward on this PR.