CB-11326 Prevent crash when initializing plugin after navigating to another URL

[vladimir-kotikov]

Platforms affected

• Android

What does this PR do?

Fixes app hang (due to internal crash) after calling navigator.app.loadUrl(myurl)

What testing has been done on this change?

Manual testing

Checklist

• ICLA has been signed and submitted to secretary@apache.org.
• Reported an issue in the JIRA database
• Commit message follows the format: "CB-3232: (android) Fix bug with resolving file paths", where CB-xxxx is the JIRA ID & "android" is the platform affected.
• Added automated test coverage as appropriate for this change.

[cordova-qa]

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[jcesarmobile]

LGTM

[vladimir-kotikov]

Thanks, @jcesarmobile