### 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)

ERR_FAIL_INDEX_V(p_gutter, gutters.size(), false);
	return gutters[p_gutter].draw;
}
void TextEdit::set_gutter_clickable(int p_gutter, bool p_clickable) {
	ERR_FAIL_INDEX(p_gutter, gutters.size());
	if (gutters[p_gutter].clickable == p_clickable) {
		return;
	}
	gutters.write[p_gutter].clickable = p_clickable;
	queue_redraw();
}
bool TextEdit::is_gutter_clickable(int p_gutter) const {
	ERR_FAIL_INDEX_V(p_gutter, gutters.size(), false);
	return gutters[p_gutter].clickable;
}
void TextEdit::set_gutter_overwritable(int p_gutter, bool p_overwritable) {
	ERR_FAIL_INDEX(p_gutter, gutters.size());
	gutters.write[p_gutter].overwritable = p_overwritable;
}
bool TextEdit::is_gutter_overwritable(int p_gutter) const {
	ERR_FAIL_INDEX_V(p_gutter, gutters.size(), false);
	return gutters[p_gutter].overwritable;
}
void TextEdit::merge_gutters(int p_from_line, int p_to_line) {