Merge pull request #1139 from Demonthos/add-onunmount-hook

Add on unmount hook

packages/hooks/src/lib.rs

@@ -50,6 +50,9 @@ macro_rules! to_owned {
     };
 }
 
+mod use_on_unmount;
+pub use use_on_unmount::*;
+
 mod usecontext;
 pub use usecontext::*;