Fix badge navigation to use cluster-scoped path via Router.createRouteURL
instead of hardcoded '/polaris'. Remove hardcoded RGB color assertions in
badge color test. Scope ambiguous /%/ and 'Resources' selectors in polaris
E2E tests. Fix settings tests to click into plugin settings before asserting.
Fixes: PRI-151
Co-Authored-By: Paperclip <noreply@paperclip.ing>