### 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)

CHECK(text_edit->get_caret_column(1) == 1);
		ERR_PRINT_OFF;
		text_edit->remove_caret(-1);
		text_edit->remove_caret(5);
		ERR_PRINT_ON;
		CHECK(text_edit->get_caret_count() == 2);
		SIGNAL_CHECK_FALSE("caret_changed");
		text_edit->remove_caret(0);
		SIGNAL_CHECK_FALSE("caret_changed");
		CHECK(text_edit->get_caret_count() == 1);
		CHECK(text_edit->get_caret_line(0) == 0);
		CHECK(text_edit->get_caret_column(0) == 1);
		ERR_PRINT_OFF;
		text_edit->remove_caret(0);
		CHECK(text_edit->get_caret_count() == 1);
		ERR_PRINT_ON;
	}
	SUBCASE("[TextEdit] caret index edit order") {
		Vector<int> caret_index_get_order;
		caret_index_get_order.push_back(1);
		caret_index_get_order.push_back(0);
		CHECK(text_edit->add_caret(1, 0));
		CHECK(text_edit->get_caret_count() == 2);
		CHECK(text_edit->get_caret_index_edit_order() == caret_index_get_order);
		text_edit->remove_secondary_carets();
		text_edit->set_caret_line(1);
		CHECK(text_edit->add_caret(0, 0));
		CHECK(text_edit->get_caret_count() == 2);
		caret_index_get_order.write[0] = 0;
		caret_index_get_order.write[1] = 1;