Your Godot version:
4.4.1

Issue description:
The documentation for PropertyHint PROPERTY_HINT_DICTIONARY_TYPE mentions that one should use the hint string to specify the type of the key and value, which is described above under PROPERTY_HINT_TYPE_STRING, but nowhere does it specify how to separate the key hint from the value hint. I looked in the source code and found that it's done with a semicolon, but this is not specified anywhere.

var hint_string = "%d:;%d:" % [TYPE_STRING, TYPE_INT]
This creates a dictionary with keys of type string, and values of type int.

URL to the documentation page (if already existing):
https://docs.godotengine.org/en/stable/classes/class_%40globalscope.html#enum-globalscope-propertyhint