Fix illegal LESS syntax

[wt-devoted]

Address this error:

ParseError: Semicolon or block is expected

Coming from here (and other instances of same):

code[class*='language-'],
pre[class*='language-'] {
    @apply subpixel-antialiased !important;
    @apply text-code-white !important;
}

Tailwind's @apply does not support !important -- not sure how the upstream package compiles, but anyway.