### 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)

CHECK(text_edit->get_caret_column() == 4);
			text_edit->undo();
			CHECK(text_edit->has_selection());
			CHECK(text_edit->get_text() == "this is some text\nfor selection");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == 8);
			text_edit->select(0, 8, 0, 4);
			CHECK(text_edit->has_selection());
			text_edit->delete_selection();
			CHECK_FALSE(text_edit->has_selection());
			CHECK(text_edit->get_text() == "thissome text\nfor selection");
			text_edit->undo();
			CHECK(text_edit->has_selection());
			CHECK(text_edit->get_text() == "this is some text\nfor selection");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == 8);
			text_edit->redo();
			CHECK_FALSE(text_edit->has_selection());
			CHECK(text_edit->get_text() == "thissome text\nfor selection");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == 4);
			text_edit->undo();
			CHECK(text_edit->has_selection());
			CHECK(text_edit->get_text() == "this is some text\nfor selection");
			CHECK(text_edit->get_caret_line() == 0);
			CHECK(text_edit->get_caret_column() == 8);
			text_edit->set_editable(false);
			text_edit->delete_selection();
			text_edit->set_editable(false);
			CHECK_FALSE(text_edit->has_selection());