### Godot version

v4.0.beta10.official [d0398f62f]

### System information

Windows 22H2, Compatibility, GeForce GTX 550 Ti

### Issue description

Multiple lines of error messages are copied without line breaks:
The script editor's error panel shows:
```
Line 6:Expected parameter name.
Line 6:Expected closing ")" after function parameters.
Line 6:Expected ":" after function declaration.
```
But selecting and copying them `ctrl c`, copies them without line breaks:
```
Line 6:Expected parameter name.Line 6:Expected closing ")" after function parameters.Line 6:Expected ":" after function declaration.
```


### Steps to reproduce

- start Godot
- open the attached project
- open the script `Node2D.gd`
The status bar shows an error message.
- click on the red circle with an x in it, and the number 3 to the right of the circle.
The script editor's error panel shows three messages:
>Line 6:Expected parameter name.
Line 6:Expected closing ")" after function parameters.
Line 6:Expected ":" after function declaration.

- select all three lines, and copy them `ctrl c`
- in the script editor, click on the empty line 12 to place the cursor there.
- paste `ctrl v`

### Expected
The copied lines should be pasted on three lines, as they appeared in the error panel.

### Observed
There are no line breaks, they appear on the same line:
```
Line 6:Expected parameter name.Line 6:Expected closing ")" after function parameters.Line 6:Expected ":" after function declaration.
```


### Minimal reproduction project

[issue, error messages copied without line breaks.zip](https://github.com/godotengine/godot/files/10361376/issue.error.messages.copied.without.line.breaks.zip)

}
			int current_line = tx->get_caret_line();
			int bpoint_idx = 0;
			if (current_line < (int)bpoints[bpoints.size() - 1]) {
				while (bpoint_idx < bpoints.size() && bpoints[bpoint_idx] <= current_line) {
					bpoint_idx++;
				}
			}
			code_editor->goto_line_centered(bpoints[bpoint_idx]);
		} break;
		case DEBUG_GOTO_PREV_BREAKPOINT: {
			PackedInt32Array bpoints = tx->get_breakpointed_lines();
			if (bpoints.size() <= 0) {
				return;
			}
			int current_line = tx->get_caret_line();
			int bpoint_idx = bpoints.size() - 1;
			if (current_line > (int)bpoints[0]) {
				while (bpoint_idx >= 0 && bpoints[bpoint_idx] >= current_line) {
					bpoint_idx--;
				}
			}
			code_editor->goto_line_centered(bpoints[bpoint_idx]);
		} break;
		case HELP_CONTEXTUAL: {
			String text = tx->get_selected_text(0);
			if (text.is_empty()) {
				text = tx->get_word_under_caret(0);
			}
			if (!text.is_empty()) {