Tables don't like `|`

[Deuchnord]

When creating a table which contains a |, it looks like Abricotine stops recognizing it as a table.

To reproduce this issue, paste in Abricotine the following table:

| Operator    | JavaScript    |
| --- | --- |
| AND    | `&&`    |
| OR    | `||`    |

then use the Table > Optimize (Ctrl/Cmd + Shift + B): nothing happens.

[brrd]

I'm moving this issue to brrd/celldown.js/issues/2