fix: small QoL: return to the last selected menu location (#1629)

## Summary

* **What is the goal of this PR?** Small UX improvement to the Home
screen by preserving the last selected cursor position when returning to
it.

It supersedes #985 and #1103, which are both significantly outdated and
hundreds of commits behind master.

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### AI Usage

Did you use AI tools to help write this code? _**< YES >**_

src/activities/Activity.h

@@ -58,6 +58,6 @@ class Activity {
 
   // Convenience method to facilitate API transition to ActivityManager
   // TODO: remove this in near future
-  void onGoHome();
+  void onGoHome(HomeMenuItem item = HomeMenuItem::NONE);
   void onSelectBook(const std::string& path);
 };