update build sh to add terser dependency

bin/build.sh

@@ -64,6 +64,9 @@ build-dist(){
 	cd ${FEUserRootDir}
 	git checkout src/typings/components.d.ts	
 	git pull
+	if ! pnpm list terser --depth 0 &> /dev/null; then
+		pnpm add terser --save-dev
+	fi
 	pnpm i
 	pnpm build
 }