Support JetBrains Exception Analyzer

[joshuataylor]

This PR is is to introduce reporting errors via JetBrains Exception Analyzer.

This allows users to submit errors/exceptions by clicking on the red report icon when an exception occurs - previously this was handled by submitting errors to GitHub as issues.

This process is entirely opt-in, and exceptions/stacktraces must be submitted manually by the user. This will always be the case, where anything you submit will be opt-in - privacy is the primary concern for anything related to error reporting.

This process is now handled via JetBrains, all data is sent to them. Stacktraces contain plugin specific errors, and should not contain your code. You can verify this when submitting - you'll see what is being sent.

Issues will be manually created when a new error is submitted, and we'll try and get something hooked up to track the amount of reports for an issue, to show publicly how many times the issue was reported by users.

I humbly ask that where possible you do submit exceptions, as it helps prioritise and understand how often certain errors are experienced.

Bonus points for creating an issue with how to reproduce, as this really helps too! ❤️