Can we please make the sticker picker area a LOT bigger? (and have controls to size it?)

### Your use case

The sticker picker area is very small, and when searching more detailed items like gifs (with mau's stickerpicker for example) it is extremely small (on desktop). I can't read text in the gifs (and it's pretty self-evident why that matters), so really we need a way to make the area much larger and hopefully with some sort of controls. If we could get config.json values that could set some sort of default size, and/or hard limits (but let us resize) that'd be great! Either way, it's way too small to the point of almost not usable (on desktop).

### Have you considered any alternatives?

I'd rather use element-web than alternatives, so I don't see an alternative way to achieve this.

### Additional context

_No response_