[BUG or ENHANCEMENT] let%ppx in signature support

[Et7f3]

In OCaml we can write ppx annotation in the signature
val%nativeComponent foo: bar

refmt sugest me [%%nativeComponent: let foo: bar].

Is their a reason why such change ?

Also let%ppx foo = bar is perfectly fine in Reason see https://github.com/jaredly/reason-macros

Can this be changed to have parity with OCaml and be more consistent.

on Refmt Reason 3.5.2 @ e6229f9a

$ esy refmt -i true
let%nativeComponent foo: bar;
Line 1, characters 3-4:
Error: Syntax error

[Et7f3]

This is related to #2478 (have %ppx in signature allowed) and should have the same fix.