fix(templates): library switcher and bookshelf filter improvements

- bookshelf.templ: Fix form field name from "library" to "library_id"
  to match the handler's QueryParam("library_id"). Add "All Books"
  as the default option in the library filter dropdown. The bookshelf
  uses its own inline filter, NOT the universal library switcher.

- collections.templ: Remove @LibrarySwitcher from the collections list
  page — collections are not library-specific, so the switcher was
  misleading. Fix data-id interpolation bug where {collection.ID} was
  rendered as literal text instead of being interpolated.

- series.templ: Replace inline library selector with the universal
  @LibrarySwitcher component. SeriesCard links no longer include
  library_id since series detail always shows all books.

templates/bookshelf.templ

@@ -46,13 +46,18 @@ templ BookShelf(
 								</label>
 								<select
 									id="library-select"
-									name="library"
+									name="library_id"
 									class="w-full px-3 py-2 border rounded-lg"
 									style="background-color: var(--bg-primary); color: var(--text-primary); border-color: var(--border);"
 								>
 									if len(libraries) == 0 {
 										<option value="">No libraries available</option>
 									} else {
+										if currentLibraryID == "" {
+											<option value="" selected>All Books</option>
+										} else {
+											<option value="">All Books</option>
+										}
 										for _, lib := range libraries {
 											if lib.ID == currentLibraryID {
 												<option value={ lib.ID } selected>{ lib.Name }</option>