Fixing the scale

BollingerBands.js

@@ -442,7 +442,7 @@
 
             let maxValue = {
                 x: MAX_PLOTABLE_DATE.valueOf(),
-                y: nextPorwerOf10(getMaxRate()) / 4 // TODO: This 4 is temporary
+                y: nextPorwerOf10(USDT_BTC_HTH) / 4 // TODO: This 4 is temporary
             };