refactor: avoid a sql request on every page

app/views/layouts/application.html.haml

@@ -42,7 +42,7 @@
     = render partial: 'layouts/display_theme_modal'
 
     .page-wrapper
-      - if feature_enabled?(:team_on_strike)
+      - if ENV['TEAM_ON_STRIKE'].present?
         = render partial: 'layouts/strike_banner'
       = render partial: "layouts/outdated_browser_banner"
       = render partial: 'layouts/pre_maintenance'

config/env.example.optional

@@ -8,6 +8,9 @@ APPLICATION_BASE_URL="https://www.demarches-simplifiees.fr"
 # If defined to "staging", tell the app that it's running on a staging instance
 DS_ENV="staging"
 
+# You know, we are a french team
+# TEAM_ON_STRIKE='pas content.'
+
 # France Connect usage
 # FRANCE_CONNECT_ENABLED="disabled" # "enabled" by default