dark mode tweaks: card/nav/logo/input refinements

- Card bodies use page background color instead of surface color
- Hours container matches page background in dark mode
- Main nav uses kbccblue background with white text in dark mode
- Radio buttons and labels are white in dark mode
- Library links are white in dark mode
- Search input stays white with dark text in dark mode
- Slick carousel arrows are white in dark mode
- LibGuides boxes use page background in dark mode
- Logo swaps to inverted version (white on dark) in dark mode

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

groups/home/bootstrap5/home1.html

@@ -88,7 +88,7 @@
               id="library-logo"
               class="image-fail"
               alt="Kibbee Library logo"
-              src="https://libapps.s3.amazonaws.com/accounts/16298/images/xsmall-2.jpg"
+              :src="isDark ? 'https://d2jv02qf7xgjwx.cloudfront.net/accounts/16298/images/Kibbee_library_logo_inverted.jpg' : 'https://libapps.s3.amazonaws.com/accounts/16298/images/xsmall-2.jpg'"
             />
             {{content_box_33471502}}
           </div>