[REG-2176] Skip graphics capture if graphics not available

[vontell]

Sorry this took so long, took a while to iterate since building the game fully takes 15 minutes or so, and my approach of doing an early conditional break was acting up, so went with the more safe approach of just wrapping it in an if statement. Tested this in BossRoom and seems to work, and in our user's game, the game itself still doesn't work, but the graphics error is no longer thrown. There may be more changes to come, TBD, but this gets us partway there.

[batu]

Nothing to add, pending Zack's comments

[nAmKcAz]

@vontell I see you re-tagged me for review, but that seems to conflict with your comments above about still testing this. I'd prefer to only re-review this one time so please request again once all testing/changes are done.

[abeizer]

Commenting so slack bot stops pinging me until this is ready

[vontell]

Ok this should finally be ready for review. Took a while to get to the cleanest solution, but I believe this would be it... TLDR; my original check would stop both the screenshot read and onCompletion handlers from being called ever, meaning that the action handlers that write the ticks to disk also never get called. I've left that check there as a safety precaution, but the main change is that now the onCompletion handlers are called right away in the case when graphics are not available.

[vontell]

@RG-nAmKcAz edits made 👍

[vontell]

Also just tested on Windows, this works there as well