query should probably accept impl Into<T> instead of T

[GlenDC]

Let's say you have something called struct StringFilter(string) that you use as the property in your proxy db instance struct.
Most likely you do implement From<String> for StringFilter where you sanitise the string prior to storing it.

Thing is... Right now if you have the property foo: StringFilter, you need to do query.foo("a".into()).

This QoL improvement would make it that you can do query.foo("a") instead, which is easier to use and also
is closer to the intent of the property, given that the StringFilter wrapper is only there to facilitate behaviour
we want from the database interaction, rather then a high level detail that a user should really care about.