Avoid resetting page cycle index when re-enabling page cycling so that

it is possible to stop on a page, inspect it, and then resume cycling at
the point that it was stopped.

src/main/io/display.c

@@ -578,7 +578,12 @@ void displaySetNextPageChangeAt(uint32_t futureMicros)
 void displayEnablePageCycling(void)
 {
     pageState.pageFlags |= PAGE_STATE_FLAG_CYCLE_ENABLED;
+}
+
+void displayResetPageCycling(void)
+{
     pageState.cycleIndex = CYCLE_PAGE_ID_COUNT - 1; // start at first page
+
 }
 
 void displayDisablePageCycling(void)

src/main/io/display.h

@@ -35,4 +35,5 @@ void displayShowFixedPage(pageId_e pageId);
 
 void displayEnablePageCycling(void);
 void displayDisablePageCycling(void);
+void displayResetPageCycling(void);
 void displaySetNextPageChangeAt(uint32_t futureMicros);

src/main/main.c

@@ -398,6 +398,7 @@ void init(void)
 #ifdef USE_OLED_GPS_DEBUG_PAGE_ONLY
         displayShowFixedPage(PAGE_GPS);
 #else
+        displayResetPageCycling();
         displayEnablePageCycling();
 #endif
     }