### Godot version

Godot 4.0 statble

### System information

Windows 10

### Issue description

TextEdit boundary wrapmode not works, it only removes the horizontal scrollbar

### Steps to reproduce

Add a textedit in editor, set  the wrap mode to boundary, type something.

### Minimal reproduction project

![image](https://user-images.githubusercontent.com/9168814/224538077-2efb4e67-8976-496e-9223-c460365ecc28.png)
![image](https://user-images.githubusercontent.com/9168814/224538084-af773b86-d73a-4e8b-9b66-a0fb4bde1168.png)

if (color != previous_color) {
									characters--;
									j--;
									if (str[j] == '\t') {
										tabs -= minimap_tab_size;
									}
								}
							}
							if (characters > 0) {
								previous_color.a *= 0.6;
								
								int chars = MAX(0, (j - (characters - 1)) - (whitespace ? 1 : 0)) + 1;
								int char_x_ofs = indent_px + ((xmargin_end + minimap_char_size.x) + (minimap_char_size.x * chars)) + tabs;
								if (rtl) {
									RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2(size.width - char_x_ofs - minimap_char_size.x * characters, minimap_line_height * i), Point2(minimap_char_size.x * characters, minimap_char_size.y)), previous_color);
								} else {
									RenderingServer::get_singleton()->canvas_item_add_rect(ci, Rect2(Point2(char_x_ofs, minimap_line_height * i), Point2(minimap_char_size.x * characters, minimap_char_size.y)), previous_color);
								}
							}
							if (out_of_bounds) {
								break;
							}
							if (str[j] == '\t') {
								tabs += minimap_tab_size;
							}
							previous_color = color;
							characters = 0;
						}