### Godot version

4.0 stable

### System information

Manjaro Linux, kernel 6.1.1-1-MANJARO, AMD Ryzen 5 3600, AMD RX 580

### Issue description

The `wrap_mode` property of the `TextEdit` node doesn't seem to really do anything. Setting it to `LINE_WRAPPING_BOUNDARY` simply means that there won't be an horizontal scrollbar if the text overshoots the boundary, instead of actually forcing the text to the next line so that it stays visible.

### Steps to reproduce

Create a TextEdit node and set its `wrap_mode` property to `LINE_WRAPPING_BOUNDARY`

### Minimal reproduction project

[WrapBugDemo.zip](https://github.com/godotengine/godot/files/10875969/WrapBugDemo.zip)

return carets.size();
}
void TextEdit::add_caret_at_carets(bool p_below) {
	Vector<int> caret_edit_order = get_caret_index_edit_order();
	for (const int &caret_index : caret_edit_order) {
		const int caret_line = get_caret_line(caret_index);
		const int caret_column = get_caret_column(caret_index);
		
		
		
		int caret_from_column = 0, caret_to_column = 0, caret_last_fit_x = carets[caret_index].last_fit_x;
		if (has_selection(caret_index)) {
			
			if (get_selection_from_line(caret_index) != get_selection_to_line(caret_index)) {
				deselect(caret_index);
			} else {
				caret_from_column = get_selection_from_column(caret_index);
				caret_to_column = get_selection_to_column(caret_index);
				caret_last_fit_x = -1;
				carets.write[caret_index].last_fit_x = _get_column_x_offset_for_line(caret_column, caret_line, caret_column);
			}
		}
		
		int new_caret_line, new_caret_column, new_caret_from_column = 0, new_caret_to_column = 0;
		_get_above_below_caret_line_column(caret_line, get_caret_wrap_index(caret_index), caret_column, p_below, new_caret_line, new_caret_column, caret_last_fit_x);
		
		if (caret_from_column != caret_to_column) {