ui: Add self to CSP
ui: Add self to CSP

Bug: https://github.com/WPO-Foundation/webpagetest/issues/1489
Change-Id: Id6d3788d889e98d485386f035d91a4a7eaf78cb8
google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto,google/perfetto