fix(chat-input): restore RoomWidgetUpdateChatInputContentEvent.TEXT mode

Upstream 7007752 removed the TEXT constant + its handler case while migrating
in-component inserts to setChatValue, but NotificationDefaultAlertView still
dispatches TEXT to copy a command into the chat input (the only cross-component
path to set the input). Restore the constant and the handler case (setChatValue
+ focus, matching the command-selector path). Fixes TS2339.

src/components/room/widgets/chat-input/ChatInputView.tsx

@@ -236,6 +236,10 @@ export const ChatInputView: FC<{}> = props =>
     {
         switch(event.chatMode)
         {
+            case RoomWidgetUpdateChatInputContentEvent.TEXT:
+                setChatValue(event.userName);
+                inputRef.current?.focus();
+                return;
             case RoomWidgetUpdateChatInputContentEvent.WHISPER: {
                 setChatValue(`${ chatModeIdWhisper } ${ event.userName } `);
                 return;