The ten most-duplicated inline SVGs (Check, Close, ChevronDown/Right,
Plus, Photo, Folder, Warning, Star, Play) become shared components --
34+ copies across 15 files replaced. Stroke icons take a per-site
strokeWidth since weights legitimately differ by context; icons that
appear once or use variant path data stay inline.
ThemedDropdown, Toolbar''s local SortDropdown, and FolderScopeDropdown
were three hand-rolled implementations of the same select pattern. They
are replaced by a single generic Dropdown (src/components/menu/) built
on MenuPanel/MenuItem, with solid/ghost/compact trigger variants and
Object.is value comparison so number|null folder scopes work alongside
string unions. Call sites drop their `value as X` casts.
MenuItem gains an `active` state plus stable menu-panel/menu-item class
hooks, and the subtle-light CSS that previously dressed only the folder
scope dropdown (feature-scope-*) now themes every menu surface --
dropdowns, context menus, and submenus alike.
LyAhn