fix(integration): Check for rest parameters in nushell integration

src/integrations/nushell.nu

@@ -4,8 +4,7 @@ def --wrapped --env p [...rest: string] {
     run-external {%PROJ_EXE%} ...$rest
 
     # The file will not exist if the prompt was aborted
-    if ($selected_project | path exists) {
-        let dir = open $selected_project
-        cd $dir
+    if ($rest | is-empty) and ($selected_project | path exists) {
+        open $selected_project | cd $in
     }
 }