Add feature request issue template

[zregvart]

Fixes: #2105

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.22%. Comparing base (1454a28) to head (d6b9068).
Report is 5 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2159   +/-   ##
=======================================
  Coverage   71.22%   71.22%           
=======================================
  Files          89       89           
  Lines        7479     7479           
=======================================
  Hits         5327     5327           
  Misses       2152     2152           

Flag	Coverage Δ
generative	?
integration	?
unit	71.22% <ø> (ø)

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[zregvart]

Merging a trivial change, will address any followups in separate PRs