Revert Foundation Gem upgrade

Gemfile

@@ -27,7 +27,7 @@ gem 'cancancan'
 gem 'devise'
 gem 'exception_notification'
 gem 'foundation-icons-sass-rails'
-gem 'foundation-rails', '~> 6'
+gem 'foundation-rails', '6.6.2.0'
 gem 'geocoder'
 gem 'haml-rails'
 gem 'i18n-js', '~> 3' # breaking changes with v4

Gemfile.lock

@@ -173,10 +173,10 @@ GEM
     foundation-icons-sass-rails (3.0.0)
       railties (>= 3.1.1)
       sass-rails (>= 3.1.1)
-    foundation-rails (6.9.0.0)
+    foundation-rails (6.6.2.0)
       railties (>= 3.1.0)
-      sassc
-      sprockets-es6
+      sass (>= 3.3.0)
+      sprockets-es6 (>= 0.9.0)
     friendly_id (5.5.1)
       activerecord (>= 4.0.0)
     geocoder (1.8.3)
@@ -393,6 +393,11 @@ GEM
     ruby_audit (2.3.1)
       bundler-audit (~> 0.9.0)
     rubyzip (2.3.2)
+    sass (3.7.4)
+      sass-listen (~> 4.0.0)
+    sass-listen (4.0.0)
+      rb-fsevent (~> 0.9, >= 0.9.4)
+      rb-inotify (~> 0.9, >= 0.9.7)
     sass-rails (6.0.0)
       sassc-rails (~> 2.1, >= 2.1.1)
     sassc (2.4.0)
@@ -517,7 +522,7 @@ DEPENDENCIES
   exception_notification
   factory_bot_rails
   foundation-icons-sass-rails
-  foundation-rails (~> 6)
+  foundation-rails (= 6.6.2.0)
   friendly_id
   geocoder
   haml-rails