Pressing enter doesn't returns the user=> prompt.

From [Slack's thread](https://clojurians.slack.com/archives/C9BT75KRC/p1721311755937949) in Clojurians #inf-clojure

## Expected behavior

Press enter to return the prompt `=>` like in clj repl.
```clj
$ clj
Clojure 1.11.3
user=>
user=>
user=>
user=>
user=>
user=>
user=>
```

## Actual behavior
Pressing enter doesn't make a new line with the user=> prompt.

A variation of the issue pressing control-j instead enter; it doesn't return, but after putting some value, it returns multiple times user =>

```clj
user=>

2
user=> user=> user=> user=> user=> user=> 2
```

## Steps to reproduce the problem

Start a new repl and press enter.

## Environment & Version information

### inf-clojure version information

3.2.1

### Clojure version

1.11.3

### Emacs version

29.3

### Operating system

MacOS Sonoma 14.5