BadgeSkeleton is the twin of Badge: the real Badge frame, as tall as an
interactive one (the settings values are buttons), with a placeholder for its
value. Permissions, resource caps, internet and allowed domains use it in place of
their "loading…" text, the details popover shows lines of text, and the
AGENTS.md editor a block, in place of theirs. SkeletonLines is a few stacked
lines for such blocks.
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