[stdlib-candidate] Clean up file bulk-rename a little

[texastoland]

Generated diff for command because move broke it.

• No file prefix similar to other filesystem commands
• Input paths instead of directory param for filters or globbing
• Record closure param with original path ($in is still stem)
• --verbose table output
• --no-exectute for dry run with --verbose
• Shorthand flags
• Parallel renaming for large directories
• More tests

@amtoine Request feedback 🙏🏼 Happy to revise ot revert anything!

❯ bulk-rename -h
Rename bulk input files in parallel using a closure.

The reason behind this command is quite simple:
- Sometimes one receives a bunch of files with integer ids: 1, 2, 3, ...
- These ids come rarely with padding... i.e. 1 instead of 001 when there are 3-digit ids
- This means that file with id 9 will be sorted way after file with id 1000

This command allows to do such a task!

Examples:
  Rename `.mise.toml` files to `.mise.local.toml` recursively
  > glob **/.mise.toml | bulk-rename { str append .local }

  Rename files in `/foo` with a name that has an id to have 3 digits with 0-padding
  > ls /foo | bulk-rename { |path|
     if $path.input.type == file {
       $path.stem | parse "some_format_{id}"
         | get 0
         | update id { fill --alignment r --character 0 --width 3 }
         | $"some_format_($in.id)"
     }
     # else skip dirs
   }

Usage:
  > main {flags} <update_stem>

Flags:
  -v, --verbose - Show which files were renamed, if any
  -n, --no-execute - Do not make any changes; add --verbose to see what would be made
whitespace bug: nushell/nushell#12264
  -h, --help - Display the help message for this command

Parameters:
  update_stem <closure()>: The code to rename the file stem: receives the old stem as input and a record param with both `stem` and `input` keys

Input/output types:
  ╭───┬───────────┬─────────────────────────────────╮
  │ # │   input   │             output              │
  ├───┼───────────┼─────────────────────────────────┤
  │ 0 │ list<any> │ nothing                         │
  │ 1 │ list<any> │ table<old: string, new: string> │
  ╰───┴───────────┴─────────────────────────────────╯

[texastoland]

Generated diff for command because move broke it.

Don't miss my linked diff in the description ±

• Input paths instead of directory param for filters or globbing

Helpful for filtering files or recursing in a directory for example:

# Examples:
#   Rename `.mise.toml` files to `.mise.local.toml` recursively
glob **/.mise.toml | batch-rename { str append .local }

• Record closure param with original path ($in is still stem)

Possible to filter by $param.input instead of globing:

#   Rename files in `/foo` with a name that has an id to have 3 digits with 0-padding
ls /foo | bulk-rename { |path|
  if $path.input.type == file {
    # rename ...
  }
  # else skip dirs
}

Also makes it possible to append metadata like size to a file name.

--verbose table output

old and new columns for checking changes.

• More tests

The previous test was more of an example. I refactored it to probe edge cases in file names including dotfiles, different extensions, and extension-less as well as new flags.

[fdncred]

thanks for cleaning this up