fix(WUI): Navbar spacing and reactive main window

[samoehlert]

Closes #18

• The hamburger menu wasn't working due to a mix of bootstrap 4 and 5.
• Fix the right hand list item spacing both on the wide view and inside the hamburger menu
• Fix the width of the add form when the window is bootstrap medium sized

[github-actions]

File	Coverage
All files	82%	✅
config/consumers.py	78%	✅
config/urls.py	69%	✅
config/settings/base.py	69%	✅
config/settings/local.py	72%	✅
scram/route_manager/admin.py	71%	✅
scram/route_manager/models.py	70%	✅
scram/route_manager/views.py	88%	✅
scram/route_manager/api/serializers.py	92%	✅
scram/route_manager/api/views.py	74%	✅
scram/shared/shared_code.py	56%	✅
scram/templates/403.html	91%	✅
scram/templates/404.html	91%	✅
scram/templates/base.html	99%	✅

Minimum allowed coverage is 50%

Generated by 🐒 cobertura-action against 303a84b

[crankynetman]

Another incredibly annoying one. Great fix, thanks!