### 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)

return;
			}
			if (k->is_action("ui_paste", true)) {
				paste();
				accept_event();
				return;
			}
			
			if (k->is_action("ui_undo", true)) {
				undo();
				accept_event();
				return;
			}
			if (k->is_action("ui_redo", true)) {
				redo();
				accept_event();
				return;
			}
			if (k->is_action("ui_text_caret_add_below", true)) {
				add_caret_at_carets(true);
				accept_event();
				return;
			}
			if (k->is_action("ui_text_caret_add_above", true)) {
				add_caret_at_carets(false);
				accept_event();
				return;
			}
		}