Always display 'lost recovery key?' option (#2745)

* Always display 'lost recovery key?' option

* Use `isLastDevice` it to display only 'enter recovery key' option for verification.

* Update strings. This should fix the wrong term 'passcode' being used in the recovery key screen title.

* Disable 'lost your recovery key?' button while the screen is in a loading state

* Update screenshots

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

features/verifysession/api/src/main/kotlin/io/element/android/features/verifysession/api/VerifySessionEntryPoint.kt

@@ -31,7 +31,6 @@ interface VerifySessionEntryPoint : FeatureEntryPoint {
 
     interface Callback : Plugin {
         fun onEnterRecoveryKey()
-        fun onCreateNewRecoveryKey()
         fun onDone()
     }
 }