### 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)

Ref<Texture2D> tex;
	switch (p_option.kind) {
		case ScriptLanguage::CODE_COMPLETION_KIND_CLASS: {
			if (has_theme_icon(p_option.display, SNAME("EditorIcons"))) {
				tex = get_theme_icon(p_option.display, SNAME("EditorIcons"));
			} else {
				tex = get_theme_icon(SNAME("Object"), SNAME("EditorIcons"));
			}
		} break;
		case ScriptLanguage::CODE_COMPLETION_KIND_ENUM:
			tex = get_theme_icon(SNAME("Enum"), SNAME("EditorIcons"));
			break;
		case ScriptLanguage::CODE_COMPLETION_KIND_FILE_PATH:
			tex = get_theme_icon(SNAME("File"), SNAME("EditorIcons"));
			break;
		case ScriptLanguage::CODE_COMPLETION_KIND_NODE_PATH:
			tex = get_theme_icon(SNAME("NodePath"), SNAME("EditorIcons"));
			break;