comboctl-main: Only receive frames if long RT button press was skipped

The code in adjustQuantityOnScreen() needs an current quantity. This is
determined during the long button press. If no such long button press
happens, get the quantity by explicitly receiving parsed frames. But
don't read those parsed frames if a long button press happened; this
is redundant and just slows down the function.

Signed-off-by: Carlos Rafael Giani <crg7475@mailbox.org>

pump/combov2/comboctl/src/commonMain/kotlin/info/nightscout/comboctl/main/RTNavigation.kt

@@ -706,6 +706,8 @@ suspend fun adjustQuantityOnScreen(
         return
     }
 
+    val currentQuantity: Int
+
     if (longRTButtonPressPredicate(targetQuantity, initialQuantity)) {
         val needToIncrement = checkIfNeedsToIncrement(initialQuantity)
         logger(LogLevel.DEBUG) {
@@ -815,10 +817,9 @@ suspend fun adjustQuantityOnScreen(
             "Second phase: last seen quantity $lastQuantity is not the target quantity; " +
                 "short-pressing RT button(s) to finetune it"
         }
-    }
-
-    val currentQuantity: Int
 
+        currentQuantity = lastQuantity!!
+    } else {
         while (true) {
             val parsedDisplayFrame = rtNavigationContext.getParsedDisplayFrame(filterDuplicates = true) ?: continue
             val parsedScreen = parsedDisplayFrame.parsedScreen
@@ -828,6 +829,7 @@ suspend fun adjustQuantityOnScreen(
                 break
             }
         }
+    }
 
     // If the on-screen quantity is not the target quantity, we may
     // have overshot, or the in/decrement factor may have been increased