Add SessionData.needsVerification field (#2672)

* Add `SessionData.needsVerification`:
  - Allows us to add a skip button for debug builds.
  - We can have the verification state almost instantly.
  - It doesn't depend on network availability to know the verification state and display the UI.
* Add DB migration.
- Make the skip button in the verification flow skip the whole flow including the completed screen.
- Save the session as verified in `RustEncryptionService.recover(recoveryKey)`.
* Enforce session verification for existing users too.
* Fix verification confirmed screen subtitle (typo in id, was using the wrong string)
* Update screenshots

---------

Co-authored-by: ElementBot <benoitm+elementbot@element.io>

features/signedout/impl/src/main/kotlin/io/element/android/features/signedout/impl/SignedOutStateProvider.kt

@@ -38,6 +38,7 @@ fun aSignedOutState() = SignedOutState(
 fun aSessionData(
     sessionId: SessionId = SessionId("@alice:server.org"),
     isTokenValid: Boolean = false,
+    needsVerification: Boolean = false,
 ): SessionData {
     return SessionData(
         userId = sessionId.value,
@@ -51,5 +52,6 @@ fun aSessionData(
         isTokenValid = isTokenValid,
         loginType = LoginType.UNKNOWN,
         passphrase = null,
+        needsVerification = needsVerification,
     )
 }