remove tslib.

Merge branch 'master' of https://github.com/bradgarropy/next-google-a…

…nalytics

[ImgBot] Optimize images (#1)

*Total -- 49.73kb -> 23.04kb (53.67%)

/example/public/twitter.png -- 17.32kb -> 7.33kb (57.7%)
/example/public/github.png -- 15.84kb -> 7.29kb (54.02%)
/example/public/facebook.png -- 16.56kb -> 8.43kb (49.11%)

Signed-off-by: ImgBotApp <[email protected]>

Co-authored-by: ImgBotApp <[email protected]>
Co-authored-by: Brad Garropy <[email protected]>