fix tooltip triangle

Author: rsergeenko

redisinsight/ui/src/components/charts/area-chart/styles.module.scss

@@ -12,7 +12,7 @@
 }
 
 .tooltip {
-  position: absolute;
+  position: fixed;
   min-width: 50px;
   height: 50px;
   min-height: 50px;
@@ -29,6 +29,7 @@
   bottom: 0;
 
   &::after {
+    display: block;
     content: "";
     top: 50px !important;
     left: calc(50% - 6px);

redisinsight/ui/src/pages/databaseAnalysis/styles.module.scss

@@ -2,8 +2,6 @@
 @import "@elastic/eui/src/components/table/mixins";
 @import "@elastic/eui/src/global_styling/index";
 
-$breakpoint-table: 1232px;
-
 .main {
   height: 100%;
 }