feat(editor, core): Integrate PostHog (#3865)

* Integrate PostHog - Part 1: Groundwork (#3753)

* Integrate PostHog - Part 2: Event capture (#3779)

* Integrate PostHog - Part 3: Session recordings (#3789)

* Integrate PostHog - Part 4: Experiments (#3825)

* Finalize PostHog integration (#3866)

* 📦 Update `package-lock.json`

* 🐛 Account for absent PH hooks file

* ✨ Create new env `EXTERNAL_FRONTEND_HOOKS_FILES`

* ⚡ Adjust env used for injecting PostHog

* 🐛 Switch to semicolon delimiter

* ⚡ Simplify to `externalFrontendHookPath`

* Refactor FE hooks flow (#3884)

* Add env var for session recordings

* inject frontend hooks even when telemetry is off

* allow multiple hooks files

* cr

* 🐛 Handle missing ref errors

* 🔥 Remove outdated `continue`

* 🎨 Change one-liners to blocks

* 📦 Update `package-lock.json`

Co-authored-by: Ahsan Virani <ahsan.virani@gmail.com>

packages/editor-ui/src/views/TemplatesCollectionView.vue

@@ -106,11 +106,13 @@ export default mixins(workflowHelpers).extend({
 			this.navigateTo(event, VIEWS.TEMPLATE, id);
 		},
 		onUseWorkflow({event, id}: {event: MouseEvent, id: string}) {
-			this.$telemetry.track('User inserted workflow template', {
+			const telemetryPayload = {
 				template_id: id,
 				wf_template_repo_session_id: this.$store.getters['templates/currentSessionId'],
 				source: 'collection',
-			});
+			};
+			this.$externalHooks().run('templatesCollectionView.onUseWorkflow', telemetryPayload);
+			this.$telemetry.track('User inserted workflow template', telemetryPayload);
 
 			this.navigateTo(event, VIEWS.TEMPLATE_IMPORT, id);
 		},