### 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)

}
	MessageQueue::get_singleton()->flush();
	text_edit->set_caret_blink_enabled(false);
	CHECK_FALSE(text_edit->is_caret_blink_enabled());
	text_edit->set_caret_blink_enabled(true);
	CHECK(text_edit->is_caret_blink_enabled());
	text_edit->set_caret_blink_interval(10);
	CHECK(text_edit->get_caret_blink_interval() == 10);
	ERR_PRINT_OFF;
	text_edit->set_caret_blink_interval(-1);
	CHECK(text_edit->get_caret_blink_interval() == 10);
	text_edit->set_caret_blink_interval(0);
	CHECK(text_edit->get_caret_blink_interval() == 10);
	ERR_PRINT_ON;
	text_edit->set_caret_type(TextEdit::CaretType::CARET_TYPE_LINE);
	CHECK(text_edit->get_caret_type() == TextEdit::CaretType::CARET_TYPE_LINE);
	text_edit->set_caret_type(TextEdit::CaretType::CARET_TYPE_BLOCK);
	CHECK(text_edit->get_caret_type() == TextEdit::CaretType::CARET_TYPE_BLOCK);
	text_edit->set_caret_type(TextEdit::CaretType::CARET_TYPE_LINE);
	CHECK(text_edit->get_caret_type() == TextEdit::CaretType::CARET_TYPE_LINE);
	int caret_col = text_edit->get_caret_column();
	text_edit->set_move_caret_on_right_click_enabled(false);
	CHECK_FALSE(text_edit->is_move_caret_on_right_click_enabled());
	SEND_GUI_MOUSE_BUTTON_EVENT(Point2i(100, 1), MouseButton::RIGHT, MouseButtonMask::RIGHT, Key::NONE);
	CHECK(text_edit->get_caret_column() == caret_col);
	text_edit->set_move_caret_on_right_click_enabled(true);
	CHECK(text_edit->is_move_caret_on_right_click_enabled());
	SEND_GUI_MOUSE_BUTTON_EVENT(Point2i(100, 1), MouseButton::RIGHT, MouseButtonMask::RIGHT, Key::NONE);
	CHECK(text_edit->get_caret_column() != caret_col);
	text_edit->set_move_caret_on_right_click_enabled(false);