Autorefresh after image pages to get rid of ghosting artifacts (#116)

src/activities/reader/EpubReaderActivity.h

@@ -37,6 +37,7 @@ class EpubReaderActivity final : public Activity {
   int cachedChapterTotalPageCount = 0;
   unsigned long lastPageTurnTime = 0UL;
   unsigned long pageTurnDuration = 0UL;
+  bool pendingHalfRefreshAfterImagePage = false;
   // Signals that the next render should reposition within the newly loaded section
   // based on a cross-book percentage jump.
   bool pendingPercentJump = false;