Merge pull request #7331 from overleaf/ab-upgrade-button-event

[web] Add upgrade-button-click event with source segmentation key

GitOrigin-RevId: c095e2e8e521b6aad40509b49cedd1cd6afc0e66

services/web/frontend/js/main/project-list/left-hand-menu-promo-controller.js

@@ -8,6 +8,9 @@ export default App.controller(
 
     $scope.upgradeSubscription = function () {
       eventTracking.send('subscription-funnel', 'project-page', 'upgrade')
+      eventTracking.sendMB('upgrade-button-click', {
+        source: 'dashboard',
+      })
     }
 
     $scope.share = function () {

services/web/frontend/js/main/subscription/upgrade-subscription.js

@@ -5,7 +5,9 @@ export default App.controller(
   function ($scope, eventTracking) {
     $scope.upgradeSubscription = function () {
       eventTracking.send('subscription-funnel', 'subscription-page', 'upgrade')
-      eventTracking.sendMB('subscription-page-upgrade-button-click')
+      eventTracking.sendMB('upgrade-button-click', {
+        source: 'subscription-page',
+      })
     }
   }
 )