The feedback emojis modal takes 5+ seconds to load on some devices

[SamMakesThings]

As the title says, the feedback emoji selection model can take over 5 seconds to load on some devices every time. This was reported on Mac OS Safari, but it seems to also occur on Chrome on that user's device. I wasn't able to replicate it on my own in Safari or Chrome.

Looking in Chrome DevTools, the problem seems to be that the system is re-fetching every emoji image every time the model is opened. We might consider caching those images for performance / efficiency purposes.

Again, I wasn't able to replicate, so take this with a grain of salt. Probably a low priority improvement.

Initially reported by Alex Reibman.

[andrewtruong]

Thanks, I think I've also seen this issue raised before -- cc: @jamie-rasmussen

[jamie-rasmussen]

The internal ticket is https://wandb.atlassian.net/browse/WB-21093 and a related ticket on the library we use is ealush/emoji-picker-react#404