Save the selected library to localStorage when the user changes the
dropdown on the bookshelf page, and restore it on every page load via
a new restoreLibrarySelection() call in the header Alpine component.
This ensures that when a user navigates between dashboard, bookshelf,
collections, etc., their last-chosen library filter is automatically
re-applied rather than resetting to the default.
Changes:
- web/src/bookshelf.ts: listen for change events on #library-select
and persist the value to localStorage
- web/src/header.ts: add restoreLibrarySelection() which checks
localStorage and sets the matching dropdown option on page load
- templates/header.templ: call restoreLibrarySelection() in x-init
- templates/header_templ.go: regenerated from templ source
john-okeefe
d222257797