[sailfish-browser] Update bookmarkIndexes map after bookmark is removed. Fixes JB#29051
[sailfish-browser] Update bookmarkIndexes map after bookmark is removed. Fixes JB#29051

alinelena/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser,sailfishos/sailfish-browser,alinelena/sailfish-browser,sailfishos/sailfish-browser