Added icons, helperfunction and new fancy notice message

Added icons from webcrunch resp. heroicons
Added helperfunction to display inline svg with the plugin inline-svg
Implemented fancy notice message webcrunch. Realy nice but does only
work with javascript on.

Gemfile

@@ -50,6 +50,7 @@ gem 'bootsnap', require: false
 group :development, :test do
   # See https://guides.rubyonrails.org/debugging_rails_applications.html#debugging-with-the-debug-gem
   gem 'debug', platforms: %i[mri windows]
+  gem 'faker', '~> 3.4'
 end
 
 group :development do
@@ -69,4 +70,4 @@ group :test do
   gem 'selenium-webdriver'
 end
 
-gem 'faker', '~> 3.4'
+gem 'inline_svg', '~> 1.9'