Root cause & Issue: We have outdated navigation packages that are starting to cause unexpected UI issues, an update is needed.

    "react-navigation": "^4.4.3",
    "react-navigation-drawer": "1.4.0",
    "react-navigation-stack": "1.7.3",
    "react-navigation-tabs": "2.5.5"

The work captured here reflects a temporary stop-gap before the actual root cause is addressed due to the current release v2.3 RC in the midst of regression testing. The long-term solution to address the issue and root cause will be captured here: https://app.zenhub.com/workspaces/metamask-mobile-5f984938ddc0e4001d4b79cb/issues/metamask/metamask-mobile/2654