CrOS Settings: Fix consistent-type-import ESLint rule for remaining code

This change complies with the top-level ESLint spec, specifically the
"consistent-type-import" rule. It helps identify which import lines are
only used for type-checking and thus can be excluded from the JS output.
Also it helps to remove unintentional side effects.

Bug: b:372733928
Test: git cl presubmit --force
Change-Id: Ie02bd837351b89bdd78d30301fd0ec1d6a2e125a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5980406
Auto-Submit: Wes Okuhara <wesokuhara@google.com>
Reviewed-by: Xiaohui Chen <xiaohuic@chromium.org>
Commit-Queue: Xiaohui Chen <xiaohuic@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1376679}