fix(ui): force dir=ltr on remaining RTL pill toggles

The branch-menu-overrides availability switch (dashboard) and the BlogToggle
(admin website editor) still moved their knob with translate-x while inheriting
RTL, so the knob escaped the track on the right. Pin both to dir="ltr" like the
other switches. All four role="switch" toggles in the codebase now share the fix.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

web/admin/src/components/admin/admin-website-screens.tsx

@@ -162,6 +162,7 @@ function BlogToggle({
     <button
       type="button"
       role="switch"
+      dir="ltr"
       aria-checked={checked}
       onClick={() => onChange(!checked)}
       className={cn(