[docs-infra] The docs with RTL break the dark theme

[alexfauquette]

Open settings and set the docs with RTL and dark theme. The background is dark, but the markdown content is in light mode

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[oliviertassinari]

✅

:where(.mode-dark) .css-1w2t1wc p
:where(.mode-dark) .css-1w2t1wc ul
:where(.mode-dark) .css-1w2t1wc ol {
  color: var(--muidocs-palette-grey-400, #B0B8C4);
}

❌

.rtl-1w2t1wc:where(.mode-dark) .rtl-1w2t1wc p
.rtl-1w2t1wc:where(.mode-dark) .rtl-1w2t1wc ul
.rtl-1w2t1wc:where(.mode-dark) .rtl-1w2t1wc ol {
  color:var(--muidocs-palette-grey-400 #B0B8C4);
}

emotion-js/emotion#2836

[thomaslindstrom]

@oliviertassinari fwiw I added a PR that fixes this issue here: emotion-js/emotion#3210