more tracking; hide arb from welcome splash

src/components/chart/RungBuilder.vue

@@ -21,7 +21,9 @@
       />
       <one-time-hint name="rungs" activator="#rungs" after="choose-builder"
                      text="↓ Try increasing rungs!" location="top"
-                     :when="rungs===1&&endpoints[0]!==null"/>
+                     :when="rungs===1&&endpoints[0]!==null"
+                     :on-complete="()=>track('rungs')"
+      />
       <v-tooltip v-if="builder.breakout!==undefined"
                  :text="order.buy?'Breakout orders buy above the breakout line':'Breakdown orders sell below the breakdown line'">
         <template #activator="{ props }">
@@ -54,7 +56,9 @@
         </div>
         <one-time-hint name="balance-slider" activator="#balance-slider" after="rungs"
                text="↓ Slide the amount balance ↓" location="top"
-               :when="balance100===0"/>
+               :when="balance100===0"
+               :on-complete="()=>track('balance-slider')"
+        />
         <v-text-field type="number" v-model="balance100" min="-100" max="100"
                       density="compact" hide-details variant="outlined" label="Balance" step="5"
                       class="balance">
@@ -88,6 +92,7 @@ import {
 } from "@/vector.js";
 import {logicalXOR} from "@/common.js";
 import OneTimeHint from "@/components/OneTimeHint.vue";
+import {track} from "@/track.js";
 
 const co = useChartOrderStore()
 const endpoints = defineModel('modelValue')  // 2-item list of points/values