Hide encryption history + FTUE flow (#839)

* First attempt at implementing encrypted history banner and removing old UTDs

* Get the right behavior in the timeline

* Implement the designs

* Extract post-processing logic, add tests

* Add encryption banner to timeline screenshots

* Create FTUE feature to handle welcome screen and analytics

* Move classes to their own packages, add tests for `DefaultFtueState`.

* Remove unnecessary private MutableStateFlow

* Move some FTUE related methods and classes back to the `impl` module

* Handle back press at each FTUE step

* Remove unneeded `TestScope` receiver for `createState` in tests.

* Use light & dark previews for the banner view.

* Move color customization from `TextStyle` to `Text` component.

* Rename `InfoList` design components, use them in `AnalyticsOptInView` too.

* Cleanup MatrixClient.

* Fix copy&paste error

Co-authored-by: Benoit Marty <benoit@matrix.org>

* Fix typo

* Fix Maestro tests

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>
Co-authored-by: Benoit Marty <benoit@matrix.org>

libraries/ui-strings/src/main/res/values-de/translations.xml

@@ -176,12 +176,6 @@
   <string name="screen_share_open_osm_maps">"In OpenStreetMap öffnen"</string>
   <string name="screen_share_this_location_action">"Diesen Ort teilen"</string>
   <string name="screen_view_location_title">"Standort"</string>
-  <string name="screen_welcome_bullet_1">"Anrufe, Standortfreigabe, Suche und mehr werden später in diesem Jahr hinzugefügt."</string>
-  <string name="screen_welcome_bullet_2">"Der Nachrichtenverlauf für verschlüsselte Räume wird in diesem Update nicht verfügbar sein."</string>
-  <string name="screen_welcome_bullet_3">"Wir würden uns freuen, wenn du uns über die Einstellungsseite deine Meinung mitteilst."</string>
-  <string name="screen_welcome_button">"Los geht\'s!"</string>
-  <string name="screen_welcome_subtitle">"Folgendes musst du wissen:"</string>
-  <string name="screen_welcome_title">"Willkommen bei %1$s!"</string>
   <string name="settings_rageshake">"Rageshake"</string>
   <string name="settings_rageshake_detection_threshold">"Erkennungsschwelle"</string>
   <string name="settings_title_general">"Allgemein"</string>

libraries/ui-strings/src/main/res/values-fr/translations.xml

@@ -178,11 +178,6 @@
   <string name="screen_share_open_google_maps">"Ouvrir dans Google Maps"</string>
   <string name="screen_share_open_osm_maps">"Ouvrir dans OpenStreetMap"</string>
   <string name="screen_share_this_location_action">"Partager cette position"</string>
-  <string name="screen_welcome_bullet_2">"L’historique des messages pour les salons chiffrés ne sera pas disponible dans cette mise à jour."</string>
-  <string name="screen_welcome_bullet_3">"Nous serions ravis d’avoir votre avis, n’hésitez pas à nous le partager via la page des paramètres."</string>
-  <string name="screen_welcome_button">"C’est parti !"</string>
-  <string name="screen_welcome_subtitle">"Voici ce qu’il faut savoir :"</string>
-  <string name="screen_welcome_title">"Bienvenue sur %1$s !"</string>
   <string name="settings_rageshake">"Rageshake"</string>
   <string name="settings_rageshake_detection_threshold">"Seuil de détection"</string>
   <string name="settings_title_general">"Général"</string>

libraries/ui-strings/src/main/res/values-sk/translations.xml

@@ -183,12 +183,6 @@
   <string name="screen_share_open_osm_maps">"Otvoriť v OpenStreetMap"</string>
   <string name="screen_share_this_location_action">"Zdieľajte túto polohu"</string>
   <string name="screen_view_location_title">"Poloha"</string>
-  <string name="screen_welcome_bullet_1">"Hovory, zdieľanie polohy, vyhľadávanie a ďalšie funkcie pribudnú neskôr v tomto roku."</string>
-  <string name="screen_welcome_bullet_2">"História správ pre zašifrované miestnosti nebude v tejto aktualizácii k dispozícii."</string>
-  <string name="screen_welcome_bullet_3">"Radi by sme od vás počuli, dajte nám vedieť, čo si myslíte, prostredníctvom stránky nastavení."</string>
-  <string name="screen_welcome_button">"Poďme na to!"</string>
-  <string name="screen_welcome_subtitle">"Tu je to, čo potrebujete vedieť:"</string>
-  <string name="screen_welcome_title">"Vitajte v %1$s!"</string>
   <string name="settings_rageshake">"Zúrivé potrasenie"</string>
   <string name="settings_rageshake_detection_threshold">"Prahová hodnota detekcie"</string>
   <string name="settings_title_general">"Všeobecné"</string>

libraries/ui-strings/src/main/res/values/localazy.xml

@@ -182,12 +182,6 @@
   <string name="screen_share_open_osm_maps">"Open in OpenStreetMap"</string>
   <string name="screen_share_this_location_action">"Share this location"</string>
   <string name="screen_view_location_title">"Location"</string>
-  <string name="screen_welcome_bullet_1">"Calls, location sharing, search and more will be added later this year."</string>
-  <string name="screen_welcome_bullet_2">"Message history for encrypted rooms won’t be available in this update."</string>
-  <string name="screen_welcome_bullet_3">"We’d love to hear from you, let us know what you think via the settings page."</string>
-  <string name="screen_welcome_button">"Let\'s go!"</string>
-  <string name="screen_welcome_subtitle">"Here’s what you need to know:"</string>
-  <string name="screen_welcome_title">"Welcome to %1$s!"</string>
   <string name="settings_rageshake">"Rageshake"</string>
   <string name="settings_rageshake_detection_threshold">"Detection threshold"</string>
   <string name="settings_title_general">"General"</string>