[enh] add expiresOn date on smith page

fix selected account appeared in invite and certify selectors

tikka/slots/pyqt/widgets/smith.py

@@ -194,6 +194,10 @@ class SmithWidget(QWidget, Ui_SmithWidget):
                 self.loaderIconLabel.show()
                 self.fetch_authority_status_from_network_timer.start()
 
+        # exclude new operating account from dependant list
+        self.init_invite_account_combo_box()
+        self.init_certify_smith_combo_box()
+
     def init_account_combo_box(self) -> None:
         """
         Init combobox with validated identity accounts (with wallets)
@@ -276,6 +280,8 @@ class SmithWidget(QWidget, Ui_SmithWidget):
         ]
 
         for account in accounts:
+            # exclude selected operating account
+            if self.account is not None and self.account.address != account.address:
                 self.inviteAccountComboBox.addItem(
                     account.name if account.name is not None else account.address,
                     userData=account.address,
@@ -342,7 +348,11 @@ class SmithWidget(QWidget, Ui_SmithWidget):
             account = self.application.accounts.get_by_identity_index(
                 smith.identity_index
             )
-            if account is not None:
+            if (
+                account is not None
+                and self.account is not None
+                and account.address != self.account.address
+            ):
                 self.certifySmithComboBox.addItem(
                     account.name if account.name is not None else account.address,
                     userData=smith.identity_index,
@@ -773,9 +783,26 @@ class SmithWidget(QWidget, Ui_SmithWidget):
                 )
 
         if self.smith is not None:
-            self.membershipValueLabel.setText(
-                display_smith_status[self.smith.status.value]
+
+            status_string = display_smith_status[self.smith.status.value]
+            if self.smith.expire_on is not None:
+                datetime_from_block = (
+                    self.application.block_time.get_datetime_from_block(
+                        self.smith.expire_on
+                    )
+                )
+                if datetime_from_block is not None:
+                    expire_on_localized_datetime_string = self.locale().toString(
+                        datetime_from_block,
+                        QLocale.dateTimeFormat(self.locale(), QLocale.ShortFormat),
+                    )
+                    self.membershipValueLabel.setToolTip(
+                        self._("block #{block}").format(block=self.smith.expire_on)
+                    )
+                    status_string = (
+                        f"{status_string} ({expire_on_localized_datetime_string})"
                     )
+            self.membershipValueLabel.setText(status_string)
         else:
             self.membershipValueLabel.setText(self._("No"))