feat: Sets up portal public views with rails ERB and tailwind (#5309)

* feat: Sets up portal public views with rails ERB and tailwind

* linter fixes

* Remove duplicate style file

* Shows articles and categories

* Specify layout for articles page

* Updates public portal styles

* Fixes blog content styles

* Portal style updates for article page

* Review fixes

* Adds breadcrumbs

* fix: rspec

* fix: public portal spec

* Code climate fixes

* Adds test cases for missing files

* Show only published articles

* Updates help center routes

* Review fixes

* Render markdown content for aticle body

* Update app/views/public/api/v1/portals/articles/index.html.erb

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

Co-authored-by: Sojan <sojan@pepalo.com>
Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>
Co-authored-by: tejaswini chile <tejaswini@chatwoot.com>

spec/controllers/public/api/v1/portals_controller_spec.rb

@@ -14,9 +14,6 @@ RSpec.describe 'Public Portals API', type: :request do
       get "/hc/#{portal.slug}/en"
 
       expect(response).to have_http_status(:success)
-      json_response = JSON.parse(response.body)
-      expect(json_response['slug']).to eql 'test-portal'
-      expect(json_response['meta']['articles_count']).to be 0
     end
 
     it 'Throws unauthorised error for unknown domain' do