### 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)

switch (p_what) {
		case NOTIFICATION_POSTINITIALIZE: {
			_update_caches();
		} break;
		case NOTIFICATION_ENTER_TREE: {
			_update_caches();
			if (caret_pos_dirty) {
				MessageQueue::get_singleton()->push_call(this, "_emit_caret_changed");
			}
			if (text_changed_dirty) {
				MessageQueue::get_singleton()->push_call(this, "_text_changed_emit");
			}
			_update_wrap_at_column(true);
		} break;
		case NOTIFICATION_RESIZED: {
			_update_scrollbars();
			_update_wrap_at_column();
		} break;
		case NOTIFICATION_VISIBILITY_CHANGED: {
			if (is_visible()) {
				call_deferred(SNAME("_update_scrollbars"));
				call_deferred(SNAME("_update_wrap_at_column"));
			}
		} break;
		case NOTIFICATION_LAYOUT_DIRECTION_CHANGED:
		case NOTIFICATION_TRANSLATION_CHANGED:
		case NOTIFICATION_THEME_CHANGED: {
			if (is_inside_tree()) {
				_update_caches();