Merge branch 'feature/add-rails-performance' into test

.env.sample

@@ -10,6 +10,8 @@ API_KEY=
 
 UI_THEME=ontoportal
 
+TWITTER_NEWS=
+
 BIOMIXER_URL=
 BIOMIXER_APIKEY=
 
@@ -39,5 +41,3 @@ OP_API_URL="https://data.bioontology.org"
 API_IMAGE_REPOSITORY=agroportal
 ## Image tag/version from which the ontoportal api will be built
 API_IMAGE_TAG=master
-
-

Gemfile

@@ -89,19 +89,20 @@ gem 'view_component', '~> 2.72'
 # Pagination library for Rails
 gem 'will_paginate', '~> 3.0'
 
-# String similarity
+# String similarity, used by federated search to rank results
 gem 'string-similarity'
 
 # Render SVG files in Rails views
 gem 'inline_svg'
 
-gem "iso-639", "~> 0.3.6"
-gem "flag-icons-rails", "~> 3.4"
+# ISO language codes and flags
+gem 'flag-icons-rails', '~> 3.4'
+gem 'iso-639', '~> 0.3.6'
+gem 'countries', '~> 5.7'
 
 # Custom API client
 gem 'ontologies_api_client', git: 'https://github.com/ontoportal-lirmm/ontologies_api_ruby_client.git', branch: 'feature/add-rails-performance'
 
-# Ruby 2.7.8 pinned gems (to remove when migrating to Ruby >= 3.0)
 gem 'ffi', '~> 1.16.3'
 gem 'net-ftp', '~> 0.2.0', require: false
 gem 'net-http', '~> 0.3.2'
@@ -118,7 +119,7 @@ gem 'omniauth-orcid'
 gem "color", "~> 1.8"
 
 # Application performance monitoring
-gem 'rails_performance'
+gem 'rails_performance', '~> 1.2.0'
 
 group :staging, :production, :appliance do
   # Application performance monitoring