viewproperties: fall back to .directory when xattr space is exhausted

When saving view properties to extended attributes failed with NoSpace,
the code cleared the xattr entry and returned without writing anything
to disk. The .directory fallback file was never created, silently
losing the user's view settings.

Fix by copying the current settings into a file-backed KConfig pointing
to .directory whenever the xattr write returns NoSpace. The copy uses
KConfigGroup::copyTo per group (not KConfig::copyFrom, which replaces
the entire entry map) so that unrelated groups already present in
.directory — such as a [Desktop Entry] group carrying a custom folder
icon — are left untouched by sync().

0 files changed, 0 insertions, 0 deletions