### 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)

if (words[c] < column) {
						column = words[c];
						break;
					}
				}
			}
			
			int overlapping_caret_index = -1;
			for (int j = i + 1; j < caret_edit_order.size(); j++) {
				
				if (get_caret_line(caret_edit_order[j]) != get_caret_line(caret_idx) && (!has_selection(caret_edit_order[j]) || get_selection_to_line(caret_edit_order[j]) != get_caret_line(caret_idx))) {
					break;
				}
				
				if ((has_selection(caret_edit_order[j]) && get_selection_to_column(caret_edit_order[j]) < column)) {
					break;
				}
				
				if ((has_selection(caret_edit_order[j]) && get_selection_from_column(caret_edit_order[j]) < column)) {
					carets.write[caret_edit_order[j]].selection.to_column = column;
					overlapping_caret_index = caret_edit_order[j];
					break;
				}
				
				if (get_caret_column(caret_edit_order[j]) > column || (has_selection(caret_edit_order[j]) && get_selection_from_column(caret_edit_order[j]) > column)) {
					deselect(caret_edit_order[j]);
					carets_to_remove.push_back(caret_edit_order[j]);
					set_caret_column(0, caret_idx == 0, caret_idx);
					i = j;
				}