Set up ACRA with email crash alerts

[TheLastProject]

This relates to #2106. However, I wouldn't call this a fix as the email notification method is likely to confuse non-technical users.

This MR mostly exists to show how relatively easy ACRA is and to have a quick reference to a branch that can be used for users who are experienced with sideloading but not so much with Scoop (which is a very small subset).