### 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)

create_menu = true;
	}
	if (create_menu) {
		Point2i pos = tx->get_line_column_at_pos(local_pos);
		int row = pos.y;
		int col = pos.x;
		tx->set_move_caret_on_right_click_enabled(EDITOR_GET("text_editor/behavior/navigation/move_caret_on_right_click"));
		int caret_clicked = -1;
		if (tx->is_move_caret_on_right_click_enabled()) {
			if (tx->has_selection()) {
				for (int i = 0; i < tx->get_caret_count(); i++) {
					int from_line = tx->get_selection_from_line(i);
					int to_line = tx->get_selection_to_line(i);
					int from_column = tx->get_selection_from_column(i);
					int to_column = tx->get_selection_to_column(i);
					if (row >= from_line && row <= to_line && (row != from_line || col >= from_column) && (row != to_line || col <= to_column)) {
						
						caret_clicked = i;
						break;
					}
				}
			}
			if (caret_clicked < 0) {
				tx->deselect();
				tx->remove_secondary_carets();
				caret_clicked = 0;
				tx->set_caret_line(row, false, false);
				tx->set_caret_column(col);
			}
		}