fix: remove rlement endpoints and links from the HealthChat

* fix(healthchat): switch off analytics, crash and bug reporting endpoints

Upstream ships *.localhost placeholders in Secrets.swift and marks the file assume-unchanged; with analytics on, the Element Call widget was handed Element's own PostHog and Sentry. nil hides the analytics prompt, the Analytics and Report a problem entries until HealthChat runs its own services.

* feat(healthchat): hide the Labs entry in settings

* fix(healthchat): point Copyright and the analytics terms at healthchat.ch

* docs(healthchat): add the 26.11.1 release notes

* feat(healthchat): drop the Element help links

* feat(healthchat): switch off location sharing

* test(healthchat): skip the analytics suite without PostHog

ElementX/Sources/Screens/Onboarding/SessionVerificationScreen/View/SessionVerificationScreen.swift

@@ -92,10 +92,12 @@ struct SessionVerificationScreen: View {
                                                       isUserVerification: true,
                                                       mediaProvider: context.mediaProvider)
             case .userInitiator:
-                Button(L10n.actionLearnMore) {
-                    UIApplication.shared.open(context.viewState.learnMoreURL)
+                if let learnMoreURL = context.viewState.learnMoreURL {
+                    Button(L10n.actionLearnMore) {
+                        UIApplication.shared.open(learnMoreURL)
+                    }
+                    .buttonStyle(.compound(.tertiary, size: .small))
                 }
-                .buttonStyle(.compound(.tertiary, size: .small))
             default:
                 EmptyView()
             }