Add math functions back to the prelude (#6595)

* Add math functions back to the prelude

* Update output

* Update docs

rust/kcl-lib/std/prelude.kcl

@@ -5,7 +5,7 @@
 
 export import * from "std::types"
 export import "std::units"
-export import PI, E, TAU, pow, sqrt from "std::math"
+export import * from "std::math"
 export import "std::math"
 export import * from "std::sketch"
 export import * from "std::solid"