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/Timeline/TimelineViewModel.swift

@@ -1143,9 +1143,8 @@ class TimelineViewModel: TimelineViewModelType, TimelineViewModelProtocol {
             state.bindings.alertInfo = .init(id: type,
                                              title: message,
                                              primaryButton: .init(title: L10n.actionOk, action: nil),
-                                             secondaryButton: .init(title: L10n.actionLearnMore) { [weak self] in
-                                                 guard let self else { return }
-                                                 appMediator.open(userSettings.app.historySharingDetailsURL)
+                                             secondaryButton: userSettings.app.historySharingDetailsURL.map { url in
+                                                 .init(title: L10n.actionLearnMore) { [weak self] in self?.appMediator.open(url) }
                                              })
         case .inviteAgain:
             state.bindings.alertInfo = .init(id: .inviteAgain,