### 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)

insert_text_at_caret(String::chr(0x00AD));
			}
		}
	}
}
void TextEdit::start_action(EditAction p_action) {
	if (current_action != p_action) {
		if (current_action != EditAction::ACTION_NONE) {
			in_action = false;
			pending_action_end = false;
			end_complex_operation();
		}
		if (p_action != EditAction::ACTION_NONE) {
			in_action = true;
			begin_complex_operation();
		}
	} else if (current_action != EditAction::ACTION_NONE) {
		pending_action_end = false;
	}
	current_action = p_action;
}
void TextEdit::end_action() {
	if (current_action != EditAction::ACTION_NONE) {
		pending_action_end = true;
	}
}
TextEdit::EditAction TextEdit::get_current_action() const {
	return current_action;
}
void TextEdit::begin_complex_operation() {