wizard: tv: fix account creation crash

Use activity context instead of application context.

GitLab: #1323
Change-Id: I727156b34370ae7debb2f37b8c49ef96e7771bf4

jami-android/app/src/main/java/cx/ring/tv/account/TVAccountWizard.kt

@@ -105,7 +105,7 @@ class TVAccountWizard : BaseActivity<AccountWizardPresenter>(), AccountWizardVie
 
     override fun displayProgress(display: Boolean) {
         if (display) {
-            mProgress = MaterialAlertDialogBuilder(applicationContext)
+            mProgress = MaterialAlertDialogBuilder(this)
                 .setView(ItemProgressDialogBinding.inflate(layoutInflater).root)
                 .setTitle(R.string.dialog_wait_create)
                 .setMessage(R.string.dialog_wait_create_details)