Crash on getDappsModel

[SergeyZhukovsky]

I found that crash in Google Play Console on nightly 1.67.64. It probably exist on stable channel as well. We need to uplift the fix.

Exception org.chromium.base.JniAndroid$UncaughtExceptionException:
  at org.chromium.base.JniAndroid$UncaughtExceptionException.<init> (JniAndroid.java:49)
  at org.chromium.base.JniAndroid.handleException (JniAndroid.java:89)
  at android.os.MessageQueue.nativePollOnce
  at android.os.MessageQueue.next (MessageQueue.java:341)
  at android.os.Looper.loopOnce (Looper.java:169)
  at android.os.Looper.loop (Looper.java:300)
  at android.app.ActivityThread.main (ActivityThread.java:8410)
  at java.lang.reflect.Method.invoke
  at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run (RuntimeInit.java:559)
  at com.android.internal.os.ZygoteInit.main (ZygoteInit.java:954)
Caused by java.lang.NullPointerException:
  at org.chromium.chrome.browser.app.domain.WalletModel.getDappsModel (WalletModel.java:144)
  at org.chromium.chrome.browser.app.BraveActivity.updateWalletBadgeVisibility (BraveActivity.java:692)
  at org.chromium.chrome.browser.app.BraveActivity.walletInteractionDetected (BraveActivity.java:681)
  at org.chromium.chrome.browser.crypto_wallet.BraveWalletProviderDelegateImplHelper.walletInteractionDetected (BraveWalletProviderDelegateImplHelper.java:58)