Fix: Display carb dots under the BG line for higher values

LoopFollow/Controllers/NightScout.swift

@@ -1424,7 +1424,7 @@ extension MainViewController {
             lastFoundIndex = sgv.foundIndex
             
             var offset = -50
-            if sgv.sgv < Double(250) {
+            if sgv.sgv < Double(topBG - 100) {
                 let bolusTime = findNearestBolusbyTime(timeWithin: 300, needle: dateTimeStamp, haystack: bolusData, startingIndex: lastFoundBolus)
                 lastFoundBolus = bolusTime.foundIndex