allows for nushell to have tables without the index column (#5380)

docs/sample_config/default_config.nu

@@ -196,6 +196,7 @@ let-env config = {
   max_history_size: 10000 # Session has to be reloaded for this to take effect
   sync_history_on_enter: true # Enable to share the history between multiple sessions, else you have to close the session to persist history to file
   shell_integration: true # enables terminal markers and a workaround to arrow keys stop working issue
+  disable_table_indexes: false # set to true to remove the index column from tables
   menus: [
       # Configuration for default nushell menus
       # Note the lack of souce parameter