Add advanced regex replace for code editor

[7evenk]

It should be possible to define a callback function in the replace field.

So it is possible to do math operations during replacement.

const regex = /(grid-row:)([0-9]*)/g;
let replacedText = text.replaceAll(regex, (match, g1, g2) => {
    let result = parseInt(g2) + 1;
    return g1 + result;
});