### 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)

bool is_match = true;
			if (pos != -1 && (p_search_flags & SEARCH_WHOLE_WORDS)) {
				
				if (pos > 0 && !is_symbol(text_line[pos - 1])) {
					is_match = false;
				} else if (pos + p_key.length() < text_line.length() && !is_symbol(text_line[pos + p_key.length()])) {
					is_match = false;
				}
			}
			if (pos_from == -1) {
				pos = -1;
			}
			if (is_match || last_pos == -1 || pos == -1) {
				break;
			}
			pos_from = (p_search_flags & SEARCH_BACKWARDS) ? pos - 1 : pos + 1;
			pos = -1;
		}
		if (pos != -1) {
			break;
		}
		if (p_search_flags & SEARCH_BACKWARDS) {
			line--;
		} else {
			line++;
		}
	}
	return (pos == -1) ? Point2i(-1, -1) : Point2i(pos, line);
}
Point2 TextEdit::get_local_mouse_pos() const {