(chore): add superhero template

.gitlab/issue_templates/superhero.md

+<!---
+Please read this!
+
+A Superhero should only be declared for critical site outages or issues. Please read https://developers.minds.com/docs/handbook/how-we-work/superhero before creating an issue.
+
+Issues created using this template automatically page on call developers.
+
+The Superhero board can be found at https://gitlab.com/groups/minds/-/boards/1388364?&label_name[]=Type%3A%3ASuperhero.
+--->
+
+### Is minds.com down?
+
+(If minds.com is not down, then please double check that you should be declaring a Superhero)
+
+### What is the issue?
+
+(Be as detailed as possible).
+
+### What username are you logged in with?
+
+(If not loggedin, please say so).
+
+### Console logs
+
+(Right click > Inspect Element > Console - Copy everything into the block below).
+
+```
+Copy your console log here
+```
+
+/label ~"Type::Superhero" ~"Superhero::Triggered"