Add toggle button to dropdown menu.

Revert left margin from tv page.
Change text dropdown filter to icon.
Change dropdown inactive item color.
Revert 500 limit rate.

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

@@ -10,7 +10,7 @@
         [template]="'advanced'"
         [limitFee]="500"
         [height]="600"
-        [left]="75"
+        [left]="60"
         [right]="10"
         [data]="mempoolStats"
         [showZoom]="false"