Build backend from its directory

deploy.nu

@@ -21,8 +21,11 @@ def main [host: string, destination: string, ssh_key: path] {
     trunk build --release
     cd ..
 
+    cd backend
     cargo test
     cargo build --target $target --release
+    cd ..
+
     invoke_ssh [sudo systemctl stop recipes]
     copy_ssh ./target/($target)/release/recipes $destination
     invoke_ssh [rm -rf recipes/static]