### 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)

int col = -1;
	if (p_key.length() > 0 && p_search.length() > 0) {
		if (p_from_column < 0 || p_from_column > p_search.length()) {
			p_from_column = 0;
		}
		while (col == -1 && p_from_column <= p_search.length()) {
			if (p_search_flags & SEARCH_MATCH_CASE) {
				col = p_search.find(p_key, p_from_column);
			} else {
				col = p_search.findn(p_key, p_from_column);
			}
			
			if (col != -1 && p_search_flags & SEARCH_WHOLE_WORDS) {
				p_from_column = col;
				if (col > 0 && !is_symbol(p_search[col - 1])) {
					col = -1;
				} else if ((col + p_key.length()) < p_search.length() && !is_symbol(p_search[col + p_key.length()])) {
					col = -1;
				}
			}
			p_from_column += 1;
		}
	}
	return col;
}
int TextEdit::_get_char_pos_for_line(int p_px, int p_line, int p_wrap_index) const {