### 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)

set_caret_column(prev_col, false, caret);
					selection_drag_attempt = true;
				} else if (caret == 0) {
					deselect();
					set_selection_mode(SelectionMode::SELECTION_MODE_POINTER, row, col);
				}
				if (is_triple_click) {
					
					selecting_mode = SelectionMode::SELECTION_MODE_LINE;
					selection_drag_attempt = false;
					_update_selection_mode_line();
					last_dblclk = 0;
				} else if (mb->is_double_click() && text[get_caret_line(caret)].length()) {
					
					selecting_mode = SelectionMode::SELECTION_MODE_WORD;
					_update_selection_mode_word();
					last_dblclk = OS::get_singleton()->get_ticks_msec();
					last_dblclk_pos = mb->get_position();
				}
				queue_redraw();
			}
			if (is_middle_mouse_paste_enabled() && mb->get_button_index() == MouseButton::MIDDLE && DisplayServer::get_singleton()->has_feature(DisplayServer::FEATURE_CLIPBOARD_PRIMARY)) {
				paste_primary_clipboard();
			}
			if (mb->get_button_index() == MouseButton::RIGHT && (context_menu_enabled || is_move_caret_on_right_click_enabled())) {
				_reset_caret_blink_timer();
				Point2i pos = get_line_column_at_pos(mpos);
				int row = pos.y;
				int col = pos.x;
				bool selection_clicked = false;