PR Checklist

• The PR title follows our guidelines: https://github.com/NativeScript/NativeScript/blob/master/CONTRIBUTING.md#commit-messages.
• There is an issue for the bug/feature this PR is for. To avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it.
• You have signed the CLA.
• All existing tests are passing: https://github.com/NativeScript/NativeScript/blob/master/DevelopmentWorkflow.md#running-unit-tests.
• Tests for the changes are included - https://github.com/NativeScript/NativeScript/blob/master/WritingUnitTests.md.

What is the current behavior?

On a markup/script change in modules at runtime execute navigation to the changed module and clear the application navigation history.

What is the new behavior?

On a markup/script change in modules at runtime replaces the current back stack entry and preserve the application navigation history.

Main Points

Handle updates on View level which allows:

• preserving application state when not only Frame, but alsoTabView and SideDrawer (Any View successor) are application roots
• applying changes per module

Detect updates on app root module.

Mind the replacing of backstack entry in the Frame's backstack history.

Implements #7145.