Make search page header more compact and fix layout structure

- Reduce all spacing and padding in header for more compact fit
- Fix back button overflow by removing width: 100% and adding overflow handling
- Make filter section more compact with smaller fonts and spacing
- Add main-wrapper div to group main and footer
- Keep rounded corners (40px) on all three sections like main.css
- Footer stays at bottom of main content area
- Fix HTML structure: footer outside main, both inside wrapper

src/cache/rate_limit/f528764d624db129b32c21fbca0cb8d6.json

@@ -1 +1 @@
-[1770898865]
+{"10":1770899252,"11":1770899274,"12":1770899301}