Name of @container directive is missing a space when exporting CSS

GrapesJS version [X] I confirm to use the latest version of GrapesJS What browser are you using? Chrome LTS Reproducible demo link / Describe the bug I noticed that the @container directive is missing a whitespace when exporting the code. This is the code I provide: To use it in a custom block, I save the CSS into the style attribute of a block, which looks like this: To ensure proper spacing, I tried adding an escaped space without success: When opening the code export, there is a missing space after the @container name, which results in broken CSS that does not work in HTML. Resulting CSS:...