MoPub -> AppLovin MAX transition (before March 2022)

[mmathieum]

Tasks:

• [x] setup AppLovin in app
• [x] test in production
• [x] remove MoPub
  • [x] publish to prod
• [x] disable in AdMob Mediation

Links:

• https://www.applovin.com/mopub-max-integration/
• https://www.applovin.com/max-plus-mopub-features/
• https://github.com/AppLovin/AppLovin-MAX-SDK-Android/releases
• https://monetization-support.applovin.com/hc/en-us/articles/115000509267-How-can-I-get-test-ads
• https://developers.google.com/admob/android/mediation/applovin