Use type-less annotation API where possible, deprecate other versions

[fm3]

As of https://github.com/scalableminds/webknossos/pull/6285, many annotation-related routes in the backend API no longer require the type paramter, but the old versions are also still there. We should consider adapting the front-end to use those new variants, and then deprecate the older ones, at least for the routes that only make sense for Task/Explorational, and never actually supported the compound case (which still needs the type information)