[4.3] Configuration warnings changed

[TokisanGames]

Description

Configuration warnings changed from PackedStringArray to an Array that accepts a mix of Strings and Dictionaries { message: String, property?: String }.
If property is set, then show a clickable warning icon on property in the inspector.
Strings in this array are converted to an equivalent Dictionary with message filled.

godotengine/godot#68420

[m4gr3d]

Note that godotengine/godot#68420 causes the master build of the Android editor to crash when loading the Terrain3D sample.