Privacy Guide: Add missing icons import for cookies fragment

privacy_guide_cookies_fragment.html uses the following icon(s):
  - settings20:shoppingcart
  - settings20:broken
  - settings20:block
  - settings20:incognito
  - settings20:account
  - settings20:web
  - settings20:user
  - settings:domain
  - settings20:fact

privacy_guide_cookies_fragment.ts does not import corresponding
.html.js file(s):
  - chrome/browser/resources/settings/icons.html for
    - settings20:* icon(s)
    - settings:* icon(s)

Add missing icon import(s).

Bug: 365922159
Change-Id: I96bd0ce8c3fa932b27d7f124cc87f62adc5c8769
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6563411
Auto-Submit: Oleh Lamzin <lamzin@google.com>
Commit-Queue: Oleh Lamzin <lamzin@google.com>
Reviewed-by: Rainhard Findling <rainhard@chromium.org>
Commit-Queue: Rainhard Findling <rainhard@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1462217}