Rework issue templates

[Archmonger]

Description

Create new issue templates that redirect users to GitHub discussions for non-bug reports.

GitHub issues is now exclusively used for bugs / adminstration.

Checklist

Please update this checklist as you complete each item:

• Tests have been developed for bug fixes or new functionality.
• The changelog has been updated, if necessary.
• Documentation has been updated, if necessary.
• GitHub Issues closed by this PR have been linked.

_{By submitting this pull request I agree that all contributions comply with this project's open source license(s).}

[codecov-commenter]

⚠️ Please install the to ensure uploads and comments are reliably processed by Codecov.

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 91.52%. Comparing base (07e27f6) to head (3615a6a).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #588   +/-   ##
=======================================
  Coverage   91.52%   91.52%           
=======================================
  Files          19       19           
  Lines         932      932           
  Branches      138      138           
=======================================
  Hits          853      853           
  Misses         43       43           
  Partials       36       36           

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