Migrate to Navigator 2.0

[aabounegm]

The current implementation uses the old Navigator 1.0, and while it is not deprecated, it uses the imperative style and is very verbose. It also requires importing the other screen and constructing it manually, which breaks SRP.
Navigator 2.0 is more declarative and gives finer control over the navigation stack and isolates the job of navigation from the screen rendering.
This can be achieved using one of the following methods/libraries:

• Manual: Writing the router delegate and router name provider/parser ourselves
• beamer
• auto_route
• vrouter

The Flutter routing packages usability research report is a good starting point

[aabounegm]

For reference, the last instance of the router when it was written using Navigator 2.0 can be found here (It was removed in this commit: aabounegm/phrase_recorder@2e5ae90)