Image folder size management

[donotos]

Hi!

in the last few days i've read a lot of webtoons on mangapie. thoses are high res and colored images that take a lot of disk space. yesterday while reading mangapie stoped working due to my fs reaching 100% capacity. while it is true that i installed mangapie on a very small 16g disk, and that you can wipe the content of that folder in a number of ways, it would still be useful if we could set up a quota for thoses cache folders.