trezor: add "show address" option in addresses tab context menu for all trezors

in case of a multisig wallet, with multiple trezors, previously only one of the trezors could be used

electrum/plugins/safe_t/qt.py

@@ -76,10 +76,10 @@ class QtPlugin(QtPluginBase):
             return
         for keystore in wallet.get_keystores():
             if type(keystore) == self.keystore_class:
-                def show_address():
+                def show_address(keystore=keystore):
                     keystore.thread.add(partial(self.show_address, wallet, addrs[0], keystore))
-                menu.addAction(_("Show on {}").format(self.device), show_address)
+                device_name = "{} ({})".format(self.device, keystore.label)
-                break
+                menu.addAction(_("Show on {}").format(device_name), show_address)
 
     def show_settings_dialog(self, window, keystore):
         device_id = self.choose_device(window, keystore)

electrum/plugins/trezor/qt.py

@@ -171,10 +171,10 @@ class QtPlugin(QtPluginBase):
             return
         for keystore in wallet.get_keystores():
             if type(keystore) == self.keystore_class:
-                def show_address():
+                def show_address(keystore=keystore):
                     keystore.thread.add(partial(self.show_address, wallet, addrs[0], keystore))
-                menu.addAction(_("Show on {}").format(self.device), show_address)
+                device_name = "{} ({})".format(self.device, keystore.label)
-                break
+                menu.addAction(_("Show on {}").format(device_name), show_address)
 
     def show_settings_dialog(self, window, keystore):
         device_id = self.choose_device(window, keystore)