fix(site): fix archetypes with Hugo 0.147.3+ by updating Docsy and render-heading template

[melsal13]

What type of PR is this?
Update Docsy to v0.11.0 for Hugo 0.147.3 compatibility and update site/layouts/_default/_markup/render-heading.html

What this PR does / why we need it:
This PR addresses a compatibility issue between newer Hugo versions (0.147.3+) and the site's template system. When using Hugo 0.147.3, users encounter an error: HTML/template:_markup/render-heading.html:1:12: no such template "_default/_markup/td-render-heading.html," which prevents both site-building and archetype generation.

The PR:

• Updates Docsy from v0.10.0 to v0.11.0
• Updates related dependencies (Font-Awesome and Bootstrap)
• Fixes rendering templates to work with the newer Hugo version

Which issue(s) this PR fixes:
Fixes #6098

Release Notes: No

[arkodg]

🚀

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 70.42%. Comparing base (309750a) to head (b57beea).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6099      +/-   ##
==========================================
+ Coverage   70.39%   70.42%   +0.03%     
==========================================
  Files         217      217              
  Lines       36128    36128              
==========================================
+ Hits        25431    25442      +11     
+ Misses       9177     9167      -10     
+ Partials     1520     1519       -1     

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