### 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_FALSE(text_edit->is_move_caret_on_right_click_enabled());
	text_edit->set_caret_column(0);
	CHECK(text_edit->get_word_under_caret() == "Lorem");
	text_edit->set_caret_column(4);
	CHECK(text_edit->get_word_under_caret() == "Lorem");
	
	text_edit->set_caret_column(5);
	CHECK(text_edit->get_word_under_caret() == "");
	text_edit->set_caret_column(6);
	CHECK(text_edit->get_word_under_caret() == "");
	text_edit->set_caret_line(1);
	CHECK(text_edit->get_caret_line() == 1);
	text_edit->set_caret_line(-1);
	CHECK(text_edit->get_caret_line() == 0);
	text_edit->set_caret_line(100);
	CHECK(text_edit->get_caret_line() == 3);
	text_edit->set_caret_column(-1);
	CHECK(text_edit->get_caret_column() == 0);
	text_edit->set_caret_column(10000000);
	CHECK(text_edit->get_caret_column() == 141);
	memdelete(text_edit);
}
TEST_CASE("[SceneTree][TextEdit] multicaret") {
	TextEdit *text_edit = memnew(TextEdit);
	SceneTree::get_singleton()->get_root()->add_child(text_edit);
	text_edit->set_multiple_carets_enabled(true);
	Array empty_signal_args;
	empty_signal_args.push_back(Array());
	SIGNAL_WATCH(text_edit, "caret_changed");
	text_edit->set_text("this is\nsome test\ntext");