* feat(skills): redesign tab switcher and fix status filter alignment and card padding
* fix(skills): replace status filter chips with SingleChoiceSegmentedButtonRow for precise alignment
* fix(skills): left-align status, category, and source filter chip rows
* fix(skills): explicitly left-align status FilterChips with 16dp start margin
* fix(skills): match status filter chip row styling and All label to category row below it
* fix(skills): remove extra Row wrapper padding from status filter chips in SkillsScreen
* feat(skills): enhance card background contrast and reduce side padding for Installed and Hub cards
* feat(skills): reduce card/search padding to 8dp and pin top controls with weight(1f) on LazyColumn
* style(skills): fix ktlint import-ordering and remove unused imports (PR #704)
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Co-authored-by: M57 <hy4ri@users.noreply.github.com>