Stefan Holderbach 2aeb77bd3e
Fix output signature of split chars/words (#9739)
# Description
Those two commands did *not* vectorize over the input in the pure sense
as they performed a flat map. Now they return a list for each string
that gets split by them.

```
["foo" "bar"] | split chars
```

## Before 

```
╭───┬───╮
│ 0 │ f │
│ 1 │ o │
│ 2 │ o │
│ 3 │ b │
│ 4 │ a │
│ 5 │ r │
╰───┴───╯
```

## After
```
╭───┬───────────╮
│ 0 │ ╭───┬───╮ │
│   │ │ 0 │ f │ │
│   │ │ 1 │ o │ │
│   │ │ 2 │ o │ │
│   │ ╰───┴───╯ │
│ 1 │ ╭───┬───╮ │
│   │ │ 0 │ b │ │
│   │ │ 1 │ a │ │
│   │ │ 2 │ r │ │
│   │ ╰───┴───╯ │
╰───┴───────────╯
```
2023-07-23 17:06:41 -05:00
..
2023-06-18 15:27:57 +12:00
2023-04-05 18:36:00 -05:00
2023-07-14 15:20:35 +12:00
2023-07-12 00:00:31 +02:00
2023-07-14 15:20:35 +12:00
2023-07-15 00:04:22 +03:00
2023-07-14 15:20:35 +12:00