Switching to the fleet Backups tab blanked the whole pane to a bare, headerless
lpLoadingBox() while the (script-heavy) backup center loaded, so it read as the
entire section reloading with no indication of where you'd landed — then the
header + content appeared at once when the fetch resolved.
Render the shared .ov-tab-header (💾 Backups + description + divider) up front and
drop the spinner into an .ov-tab-body beneath it, matching the per-app detail
tabs' header-first idiom (and the recent Admin board fix). The header stays put
and only the content area swaps in once BackupPage mounts.
The Migrate tab already does this — mountMigrate() injects its header and the
sub-tab strip is static, so its spinner is already confined to the Restore/Peers
sub-panel — so no change was needed there.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Signed-off-by: librelad <librelad@digitalangels.vip>
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