fix(webui): add user guide to nav bar

[natelandau]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 42.30769% with 30 lines in your changes missing coverage. Please review.

Project coverage is 72.53%. Comparing base (f1a0b48) to head (e09deef).
Report is 4 commits behind head on main.

Files	Patch %	Lines
src/valentina/webui/views/campaign_view.py	25.00%	24 Missing ⚠️
src/valentina/webui/routes/home.py	50.00%	3 Missing ⚠️
src/valentina/webui/utils/helpers.py	0.00%	1 Missing ⚠️
src/valentina/webui/views/character_create_full.py	0.00%	1 Missing ⚠️
src/valentina/webui/views/character_view.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #172      +/-   ##
==========================================
- Coverage   72.91%   72.53%   -0.38%     
==========================================
  Files          47       48       +1     
  Lines        2891     2935      +44     
  Branches      470      474       +4     
==========================================
+ Hits         2108     2129      +21     
- Misses        721      745      +24     
+ Partials       62       61       -1     

Files	Coverage Δ
src/valentina/webui/WTForms/campaign.py	100.00% <100.00%> (ø)
src/valentina/webui/blueprints.py	100.00% <100.00%> (ø)
src/valentina/webui/views/__init__.py	100.00% <100.00%> (ø)
src/valentina/webui/views/gameplay.py	25.27% <ø> (ø)
src/valentina/webui/utils/helpers.py	13.25% <0.00%> (ø)
src/valentina/webui/views/character_create_full.py	26.50% <0.00%> (ø)
src/valentina/webui/views/character_view.py	23.18% <0.00%> (ø)
src/valentina/webui/routes/home.py	58.62% <50.00%> (-2.25%)	⬇️
src/valentina/webui/views/campaign_view.py	32.14% <25.00%> (-9.24%)	⬇️