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

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

.maestro/tests/account/verifySession.yaml

@@ -7,3 +7,7 @@ appId: ${MAESTRO_APP_ID}
 - inputText: ${MAESTRO_RECOVERY_KEY}
 - hideKeyboard
 - tapOn: "Confirm"
+- extendedWaitUntil:
+    visible: "Device verified"
+    timeout: 10000
+- tapOn: "Continue"