Add total sum to mempool chart.

Add zoom tools.
Add different theme for charts `big` and `small` (default).
Fix date format on mouseover.
Fix animations on graphs page.
Fix overflow tv page.
Remove `crosshair` on mouseover, changed to `line`.
Fix custom tooltip styles.
Remove inverted button (will add in a future PR).
Remove fee range labels (will add in a future PR).
Fix e2e testing.

frontend/src/app/components/television/television.component.html

@@ -5,8 +5,15 @@
   </div>
 
   <div class="tv-container" *ngIf="mempoolStats.length">
-    <div class="chart-holder" >
-      <app-mempool-graph dir="ltr" [data]="mempoolStats" [limitFee]="1200" [height]="600"></app-mempool-graph>
+    <div class="chart-holder">
+      <app-mempool-graph
+        dir="ltr"
+        [size]="'big'"
+        [limitFee]="1200"
+        [height]="500"
+        [left]="60"
+        [data]="mempoolStats"
+      ></app-mempool-graph>
     </div>
     <div class="blockchain-wrapper">
       <div class="position-container">