Install chez_sqlite_shim.so to $PREFIX/lib on make install

ober

581b31e35dffd6d4051c9839317b52aed788843b

diff --git a/Makefile b/Makefile
index 6abb30b..1641fd3 100644
--- a/Makefile
+++ b/Makefile
@@ -87,6 +87,7 @@ binary: build
 install: binary
 	mkdir -p $(HOME)/.local/bin
 	cp jcode $(HOME)/.local/bin/jcode
+	cp vendor/chez-sqlite/chez_sqlite_shim.so $(PREFIX)/lib/chez_sqlite_shim.so 2>/dev/null || true
 	@echo "Installed to ~/.local/bin/jcode"
 
 linux: linux-check docker