fix(aws-amplify): sync Cognito auth config and merge libraryOptions on reconfigure#14819

ShrutiPundir17 wants to merge 2 commits into

aws-amplify:mainaws-amplify/amplify-js:mainfrom

ShrutiPundir17:fix/init-singleton-auth-config-reconfigureShrutiPundir17/amplify-js:fix/init-singleton-auth-config-reconfigureCopy head branch name to clipboard