Warn/lint users about potential for recursive issue with *text_image

https://forum.choiceofgames.com/t/new-choicescript-extension-for-vs-code-2-0-now-runs-games/71387/73?u=cjw

> I recently discovered a new bug that can cause recursion issues once a game is compiled. If you were to use the *text_image command, but leave out the alignment and caption, it will cause a recursion error to occur once the data URI is implemented post-compilation.
>
> For example, the following line will cause a recursion error after compiling the game:
>
> *text_image sample.png
> The alignment and caption needs to be included in order to avoid the recursion bug:
>
> *text_image sample.png center Sample Caption
> There’s not much information surrounding the *text_image command from what I can find. Yet, I was thinking perhaps it would be a nice addition to the extension if it notified the author/developer of the improper command. To save some future headaches if possible, as I was at a lost on what was causing the recursion bug initially.
>
> [@CJW](https://forum.choiceofgames.com/u/cjw) Apologies for the tag, but this may also be something that could be added to the IDE, if it hasn’t been already?