### 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_saved_version() == 3);
	text_edit->undo();
	CHECK(text_edit->get_line(0) == "");
	CHECK(text_edit->get_version() == 0);
	CHECK(text_edit->get_saved_version() == 3);
	CHECK_FALSE(text_edit->has_undo());
	CHECK(text_edit->has_redo());
	text_edit->redo();
	CHECK(text_edit->get_line(0) == "test ops nested");
	CHECK(text_edit->get_version() == 3);
	CHECK(text_edit->get_saved_version() == 3);
	CHECK(text_edit->has_undo());
	CHECK_FALSE(text_edit->has_redo());
	text_edit->clear_undo_history();
	CHECK_FALSE(text_edit->has_undo());
	CHECK_FALSE(text_edit->has_redo());
	CHECK(text_edit->get_version() == 3); 
	CHECK(text_edit->get_saved_version() == 0);
	memdelete(text_edit);
}
TEST_CASE("[SceneTree][TextEdit] search") {
	TextEdit *text_edit = memnew(TextEdit);
	SceneTree::get_singleton()->get_root()->add_child(text_edit);
	text_edit->set_text("hay needle, hay\nHAY NEEDLE, HAY");
	int length = text_edit->get_line(1).length();
	CHECK(text_edit->search("test", 0, 0, 0) == Point2i(-1, -1));
	CHECK(text_edit->search("test", TextEdit::SEARCH_MATCH_CASE, 0, 0) == Point2i(-1, -1));
	CHECK(text_edit->search("test", TextEdit::SEARCH_WHOLE_WORDS, 0, 0) == Point2i(-1, -1));
	CHECK(text_edit->search("test", TextEdit::SEARCH_BACKWARDS, 0, 0) == Point2i(-1, -1));
	CHECK(text_edit->search("test", 0, 1, length) == Point2i(-1, -1));