Question issue template

[RiccardoM]

Description

This PR implements a new issue template to allow users ask any kind of question.

Checklist

• [ ] Targeted PR against correct branch.
• [ ] Linked to Github issue with discussion and accepted design OR link to spec that describes this work.
• [ ] Wrote unit tests.
• [ ] Run flutter format.
• [ ] Updated the documentation.
• [ ] Added an entry to the CHANGELOG.md file.
• [ ] Re-reviewed Files changed in the Github PR explorer.

[codecov[bot]]

Codecov Report

Merging #120 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #120   +/-   ##
=======================================
  Coverage   19.22%   19.22%           
=======================================
  Files         262      262           
  Lines        6595     6595           
=======================================
  Hits         1268     1268           
  Misses       5327     5327           

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