Repo security

[TheJNXx]

I know this repo isn't focused on security, but the AI has noticed a certain problem with it: the fact that keystores are exposed so easily. This is something that practically anyone can use to impersonate these apps in a repository other than yours. This could lead to people who aren't familiar with your original repo and come across another one that's exactly the same being easily tricked into downloading malware, or at least that's what I understood

[nullcpy]

I plan on using my own keystore. I'm currently using j-hc's, but there are other issues with the repo that I'm going to deal with first.

[fahim-ahmed05]

signing keys are changed. public keystores are removed from the repo.

#181