fix: disable back press when app lock team enforced (WPB-5644)

[alexandreferris]

WPB-5644 [Android] Back button bypasses applock screen when it is forced

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What's new in this PR?

Issues

When AppLock is enforced by team, it was able to press back button (either hardware or app button) and navigate back in the screen and use the app normally until next closing/opening app and being prompted with setting app lock password.

Solutions

When AppLock is enforced by team, hide back button on app and disable back button on screen.
Functionalities remain the same when it is not enforced by team but user wants to set AppLock.

Testing

How to Test

• Open App
• Receive AppLock enforced by team dialog
• on Set AppLock password screen
• make sure back button is hidden (top left) + hardware back button has no effect.

[github-actions]

Test Results

696 tests   696 ✔️  8m 41s ⏱️
  99 suites      0 💤
  99 files        0 ❌

Results for commit 0bb28ee.

♻️ This comment has been updated with latest results.

[AndroidBob]

Build 2028 failed.

[AndroidBob]

Build 2037 failed.

[AndroidBob]

Build 2057 failed.

[AndroidBob]

Build 2058 failed.

[AndroidBob]

Build 2073 failed.

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!

[github-actions]

APKs built during tests are available here. Scroll down to Artifacts!