Fix filters

[pngwn]

Fixes the following thingies:

• The fancy popout screenshots
• The svelte | kit dropdown selector.
• The tiny contributor images were working fine but the filter was crazy slow. Better now.

I couldn't text the tutorial bits because they wouldn't load for me locally but i added the magical property anyway just in case. We can remove it if it isn't needed.

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[pngwn]

On iOS.

[pngwn]

The jaggedyness is present and visible and not just an artifact of the screenshot but it isn't this visible in real life.

[Rich-Harris]

tested locally, looks good. thanks, this would have been a nightmare to debug without a device