[chore] Fix issue template

[martincostello]

Description

Fix error in YAML issue form.

[Copilot]

Pull Request Overview

Fix YAML formatting error in the GitHub issue template for feature requests by combining a multi-line description into a single line.

• Corrected YAML syntax error in the feature request issue template
• Combined fragmented description text into a proper single-line format

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.54%. Comparing base (3d3d087) to head (7a72c27).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #13728   +/-   ##
=======================================
  Coverage   91.53%   91.54%           
=======================================
  Files         640      640           
  Lines       42508    42508           
=======================================
+ Hits        38911    38915    +4     
+ Misses       2779     2776    -3     
+ Partials      818      817    -1     

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