Update links in comments to @link format in Analytics #5116
Description
Update links (e.g. https://github.com/firebase/firebase-js-sdk/blob/master/packages-exp/analytics-exp/src/public-types.ts#L30) in Analytics to @link format.
@link example: https://github.com/firebase/firebase-js-sdk/blob/master/packages-exp/app-exp/src/api.ts#L54