### Godot version

4.0.2.stable.official [7a0977ce2]

### System information

Windows 10

### Issue description

LineEdit node with enabled "expand_to_text_length" option and "minimum_character_width = 0" and cleared margins in style overrides still has some empty space inside
![node](https://github.com/godotengine/godot/assets/23380802/86c79678-8422-4a98-8406-602edd7dc48b)
![node settings](https://github.com/godotengine/godot/assets/23380802/11d04d71-bbf1-4c16-8155-fe39b5bbd66b)
![style overrides](https://github.com/godotengine/godot/assets/23380802/6b3c3925-b4bd-455b-aac1-ddeb54a4d796)


### Steps to reproduce

1. Add LineEdit node
2. Set expand_to_text_length = true
3. Set minimum_character_width in theme overrides = 0
4. Set normal to StyleBoxEmpty


### Minimal reproduction project

[LineEdit can't be zero sized.zip](https://github.com/godotengine/godot/files/11566017/LineEdit.can.t.be.zero.sized.zip)

DisplayServer::get_singleton()->clipboard_set_primary(text);
						}
					} else if (b->is_double_click()) {
						
						last_dblclk = OS::get_singleton()->get_ticks_msec();
						last_dblclk_pos = b->get_position();
						PackedInt32Array words = TS->shaped_text_get_word_breaks(text_rid);
						for (int i = 0; i < words.size(); i = i + 2) {
							if ((words[i] < caret_column && words[i + 1] > caret_column) || (i == words.size() - 2 && caret_column == words[i + 1])) {
								selection.enabled = true;
								selection.begin = words[i];
								selection.end = words[i + 1];
								selection.double_click = true;
								set_caret_column(selection.end);
								break;
							}
						}
						if (!pass && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
							DisplayServer::get_singleton()->clipboard_set_primary(get_selected_text());
						}
					}
				}
				selection.drag_attempt = false;
				if ((caret_column < selection.begin) || (caret_column > selection.end) || !selection.enabled) {
					deselect();
					selection.start_column = caret_column;
					selection.creating = true;
				} else if (selection.enabled && !selection.double_click) {
					selection.drag_attempt = true;
				}