Changed the color of "login with google" text and "logout" text

[SAGARSINGH-1]

fix : #27

Updated the text color of both "login" and "Logout" of that component.

here is the result :

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Name	Status	Preview	Comments	Updated (UTC)
harmony-code	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Oct 5, 2023 4:52am

[DhanushNehru]

Great work @SAGARSINGH-1