CrOS Settings: Convert pwa detail view browser test to TS

Additionally, moved the test under the
`os_apps_page/app_management_page` folder to mirror the app folder
structure.

gtest_filter="*OsAppsPageAppManagementPagePwaDetailView*"

Bug: b/270728282
Test: browser_tests --
Change-Id: I96c55e0522bcf665ffde2c0db2dfca5cf189fa2c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4575760


Reviewed-by: Wes Okuhara <wesokuhara@google.com>
Commit-Queue: Ruma Kesh <rkesh@google.com>
Cr-Commit-Position: refs/heads/main@{#1152632}