Turns out that it is not possible to configure the size of the create issue screen yet.
However there's a feature request for it which I'd strongly suggest you to vote and comment on it to raise its awareness and also add yourself as a watcher for following further updates.
Hope this helps.
Hey folks and happy Topic Tuesday! In the spirit of Halloween and all things scary, today's topic is what is your favourite horror movie monster. My personal choice here would be Jason from the Frida...
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