Add payment button icon to the corner.

Telegram/SourceFiles/history/view/history_view_message.cpp

@@ -102,6 +102,7 @@ void KeyboardStyle::paintButtonIcon(
 		switch (type) {
 		case Type::Url:
 		case Type::Auth: return &st::msgBotKbUrlIcon;
+		case Type::Buy: return &st::msgBotKbPaymentIcon;
 		case Type::SwitchInlineSame:
 		case Type::SwitchInline: return &st::msgBotKbSwitchPmIcon;
 		}
@@ -124,6 +125,7 @@ int KeyboardStyle::minButtonWidth(
 	switch (type) {
 	case Type::Url:
 	case Type::Auth: iconWidth = st::msgBotKbUrlIcon.width(); break;
+	case Type::Buy: iconWidth = st::msgBotKbPaymentIcon.width(); break;
 	case Type::SwitchInlineSame:
 	case Type::SwitchInline: iconWidth = st::msgBotKbSwitchPmIcon.width(); break;
 	case Type::Callback:

Telegram/SourceFiles/ui/chat/chat.style

@@ -463,6 +463,7 @@ msgBotKbFont: semiboldFont;
 msgBotKbIconPadding: 2px;
 msgBotKbUrlIcon: icon {{ "inline_button_url", msgBotKbIconFg }};
 msgBotKbSwitchPmIcon: icon {{ "inline_button_switch", msgBotKbIconFg }};
+msgBotKbPaymentIcon: icon {{ "inline_button_card", msgBotKbIconFg }};
 msgBotKbButton: BotKeyboardButton {
 	margin: 5px;
 	padding: 10px;