diff --git a/Gemfile.lock b/Gemfile.lock
index 4967611..d03680d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -7,51 +7,51 @@ PATH
 GEM
   remote: https://rubygems.org/
   specs:
-    actioncable (5.2.4.2)
-      actionpack (= 5.2.4.2)
+    actioncable (5.2.8.1)
+      actionpack (= 5.2.8.1)
       nio4r (~> 2.0)
       websocket-driver (>= 0.6.1)
-    actionmailer (5.2.4.2)
-      actionpack (= 5.2.4.2)
-      actionview (= 5.2.4.2)
-      activejob (= 5.2.4.2)
+    actionmailer (5.2.8.1)
+      actionpack (= 5.2.8.1)
+      actionview (= 5.2.8.1)
+      activejob (= 5.2.8.1)
       mail (~> 2.5, >= 2.5.4)
       rails-dom-testing (~> 2.0)
-    actionpack (5.2.4.2)
-      actionview (= 5.2.4.2)
-      activesupport (= 5.2.4.2)
+    actionpack (5.2.8.1)
+      actionview (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
       rack (~> 2.0, >= 2.0.8)
       rack-test (>= 0.6.3)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.2)
-    actionview (5.2.4.2)
-      activesupport (= 5.2.4.2)
+    actionview (5.2.8.1)
+      activesupport (= 5.2.8.1)
       builder (~> 3.1)
       erubi (~> 1.4)
       rails-dom-testing (~> 2.0)
       rails-html-sanitizer (~> 1.0, >= 1.0.3)
-    activejob (5.2.4.2)
-      activesupport (= 5.2.4.2)
+    activejob (5.2.8.1)
+      activesupport (= 5.2.8.1)
       globalid (>= 0.3.6)
-    activemodel (5.2.4.2)
-      activesupport (= 5.2.4.2)
-    activerecord (5.2.4.2)
-      activemodel (= 5.2.4.2)
-      activesupport (= 5.2.4.2)
+    activemodel (5.2.8.1)
+      activesupport (= 5.2.8.1)
+    activerecord (5.2.8.1)
+      activemodel (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
       arel (>= 9.0)
-    activestorage (5.2.4.2)
-      actionpack (= 5.2.4.2)
-      activerecord (= 5.2.4.2)
-      marcel (~> 0.3.1)
-    activesupport (5.2.4.2)
+    activestorage (5.2.8.1)
+      actionpack (= 5.2.8.1)
+      activerecord (= 5.2.8.1)
+      marcel (~> 1.0.0)
+    activesupport (5.2.8.1)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 0.7, < 2)
       minitest (~> 5.1)
       tzinfo (~> 1.1)
     arel (9.0.0)
     builder (3.2.4)
-    coderay (1.1.2)
-    concurrent-ruby (1.1.6)
+    coderay (1.1.3)
+    concurrent-ruby (1.1.10)
     coveralls (0.8.23)
       json (>= 1.8, < 3)
       simplecov (~> 0.16.1)
@@ -62,74 +62,72 @@ GEM
     diff-lcs (1.3)
     docile (1.3.2)
     erubi (1.9.0)
-    globalid (0.4.2)
-      activesupport (>= 4.2.0)
-    i18n (1.8.2)
+    globalid (1.0.1)
+      activesupport (>= 5.0)
+    i18n (1.12.0)
       concurrent-ruby (~> 1.0)
-    json (2.3.1)
+    json (2.6.3)
     loofah (2.5.0)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)
     mail (2.7.1)
       mini_mime (>= 0.1.1)
-    marcel (0.3.3)
-      mimemagic (~> 0.3.2)
+    marcel (1.0.2)
     method_source (0.9.2)
-    mimemagic (0.3.4)
     mini_mime (1.0.2)
     mini_portile2 (2.4.0)
-    minitest (5.14.0)
+    minitest (5.15.0)
     nio4r (2.5.2)
     nokogiri (1.10.9)
       mini_portile2 (~> 2.4.0)
     pry (0.12.2)
       coderay (~> 1.1.0)
       method_source (~> 0.9.0)
-    rack (2.2.3.1)
+    rack (2.2.6.2)
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
-    rails (5.2.4.2)
-      actioncable (= 5.2.4.2)
-      actionmailer (= 5.2.4.2)
-      actionpack (= 5.2.4.2)
-      actionview (= 5.2.4.2)
-      activejob (= 5.2.4.2)
-      activemodel (= 5.2.4.2)
-      activerecord (= 5.2.4.2)
-      activestorage (= 5.2.4.2)
-      activesupport (= 5.2.4.2)
+    rails (5.2.8.1)
+      actioncable (= 5.2.8.1)
+      actionmailer (= 5.2.8.1)
+      actionpack (= 5.2.8.1)
+      actionview (= 5.2.8.1)
+      activejob (= 5.2.8.1)
+      activemodel (= 5.2.8.1)
+      activerecord (= 5.2.8.1)
+      activestorage (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
       bundler (>= 1.3.0)
-      railties (= 5.2.4.2)
+      railties (= 5.2.8.1)
       sprockets-rails (>= 2.0.0)
     rails-dom-testing (2.0.3)
       activesupport (>= 4.2.0)
       nokogiri (>= 1.6)
     rails-html-sanitizer (1.3.0)
       loofah (~> 2.3)
-    railties (5.2.4.2)
-      actionpack (= 5.2.4.2)
-      activesupport (= 5.2.4.2)
+    railties (5.2.8.1)
+      actionpack (= 5.2.8.1)
+      activesupport (= 5.2.8.1)
       method_source
       rake (>= 0.8.7)
       thor (>= 0.19.0, < 2.0)
     rake (13.0.1)
-    rspec-core (3.9.0)
-      rspec-support (~> 3.9.0)
-    rspec-expectations (3.9.0)
+    rspec-core (3.12.0)
+      rspec-support (~> 3.12.0)
+    rspec-expectations (3.12.2)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-mocks (3.9.0)
+      rspec-support (~> 3.12.0)
+    rspec-mocks (3.12.3)
       diff-lcs (>= 1.2.0, < 2.0)
-      rspec-support (~> 3.9.0)
-    rspec-rails (3.9.0)
-      actionpack (>= 3.0)
-      activesupport (>= 3.0)
-      railties (>= 3.0)
-      rspec-core (~> 3.9.0)
-      rspec-expectations (~> 3.9.0)
-      rspec-mocks (~> 3.9.0)
-      rspec-support (~> 3.9.0)
-    rspec-support (3.9.0)
+      rspec-support (~> 3.12.0)
+    rspec-rails (5.1.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
+      railties (>= 5.2)
+      rspec-core (~> 3.10)
+      rspec-expectations (~> 3.10)
+      rspec-mocks (~> 3.10)
+      rspec-support (~> 3.10)
+    rspec-support (3.12.0)
     simplecov (0.16.1)
       docile (~> 1.1)
       json (>= 1.8, < 3)
@@ -138,17 +136,19 @@ GEM
     sprockets (4.0.0)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    sprockets-rails (3.2.1)
-      actionpack (>= 4.0)
-      activesupport (>= 4.0)
+    sprockets-rails (3.4.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
       sprockets (>= 3.0.0)
-    sqlite3 (1.4.1)
+    sqlite3 (1.4.4)
+    sync (0.5.0)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
-    thor (1.0.1)
+    thor (1.2.1)
     thread_safe (0.3.6)
-    tins (1.21.1)
-    tzinfo (1.2.7)
+    tins (1.32.1)
+      sync
+    tzinfo (1.2.10)
       thread_safe (~> 0.1)
     websocket-driver (0.7.1)
       websocket-extensions (>= 0.1.0)