feat: quick rotate option in epub reader menu (#685)

## Summary

* adds rotation setting in epub reader menu, actual rotation happens on
going back
* improves button hint drawing to draw correctly in all orientations

<img width="860" height="1147" alt="image"
src="https://github.com/user-attachments/assets/91ceeca6-729f-4304-b68a-e412f6e2c9a7"
/>


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### AI Usage

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please be transparent about their usage as it
helps set the right context for reviewers.

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

src/activities/reader/EpubReaderActivity.h

@@ -29,8 +29,9 @@ class EpubReaderActivity final : public ActivityWithSubactivity {
                       int orientedMarginBottom, int orientedMarginLeft);
   void renderStatusBar(int orientedMarginRight, int orientedMarginBottom, int orientedMarginLeft) const;
   void saveProgress(int spineIndex, int currentPage, int pageCount);
-  void onReaderMenuBack();
+  void onReaderMenuBack(uint8_t orientation);
   void onReaderMenuConfirm(EpubReaderMenuActivity::MenuAction action);
+  void applyOrientation(uint8_t orientation);
 
  public:
   explicit EpubReaderActivity(GfxRenderer& renderer, MappedInputManager& mappedInput, std::unique_ptr<Epub> epub,