inlay hints should use namespaces

[KotlinIsland]

my_datetime: datetime = dt.datetime.fromisoformat(my_str)
In this case, : datetime is an inlay hint, but it should be dt.datetime to namespace correctly. Might be nicer to read dt.datetime too, so that it matches how you're using it in the code (dt.datetime.fromisoformat).

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Currently also has an effect if e.g. using the mouse to copy code with inlay hints, from a terminal to a repl, which then fails on the repl due to invalid type hint.

Originally posted by @npip99 in #198 (comment)