Check for old/deprecated dependencies

[Mauker1]

Context

It came into my knowledge that we are using the deprecated dependency com.squareup.okhttp instead of com.squareup.okhttp3.

We will update it, but I also believe it's a good idea that we double check the other dependencies and change them if another deprecated dep is found.

[TimCastelijns]

I think it's also a good idea to avoid using libraries for small tasks.

[Mauker1]

Agreed.

[raghunandankavi2010]

Also in the future we can move to android x libs which is part of andorid jetpack family!.