Major rework of extern ref system for WASM, fixes most possible panics in WASM handling

src/ffi/dynamic_data/models/learned_move.rs

@@ -61,5 +61,6 @@ extern "C" fn learned_move_restore_all_uses(learned_move: ExternPointer<Arc<Lear
 /// Restore the remaining PP by a certain amount. Will prevent it from going above max PP.
 #[no_mangle]
 extern "C" fn learned_move_restore_uses(learned_move: ExternPointer<Arc<LearnedMove>>, amount: u8) -> NativeResult<()> {
-    learned_move.as_ref().restore_uses(amount).into()
+    learned_move.as_ref().restore_uses(amount);
+    NativeResult::ok(())
 }